Running Google Ads for English centers is about more than clicks, it’s about attracting the right students and controlling costs. Many education businesses struggle with irrelevant traffic and rising acquisition expenses. This was the challenge for PTE HELPER: active campaigns that lacked a clear structure for efficient scaling. This case study explores how NEMI ADS rebuilt their Google Ads system to improve lead quality, eliminate wasted spend, and create a stable, scalable enrollment pipeline.
1. Challenges In Scaling PTE Enrollment Campaigns
Before NEMI ADS, PTE HELPER’s Google Ads lacked the structure for efficient growth. Despite having traffic, the account struggled with inconsistent conversions. Budget was often wasted on broad keywords and low-intent searches, while an unclear conversion setup prevented clicks from turning into actual enrollments.
Several challenges were affecting performance at the same time:
- Rising cost per lead without a clear explanation
- Inconsistent lead quality across campaigns
- Budget being spent on search terms with weak enrollment intent
- Limited visibility into which campaigns were producing real student opportunities
- Difficulty scaling without seeing CPA and CPL become unstable
In a crowded market, PTE HELPER faced intense competition as students frequently compared multiple centers. Without precise keyword strategies, messaging, and tracking, their budget risked being wasted. Beyond just active ads, the center required a structured acquisition system to consistently attract high-intent students ready to consult and enroll.
2. Customer Background And Growth Objective
PTE HELPER, an English center specializing in PTE training, aimed to transform Google Ads into a reliable growth engine. While the client, Ms. Hoa, had already seen some success with paid search, the account lacked the strategic control necessary for confident scaling. As spending rose, performance fluctuated, with some campaigns wasting budget on low-value inquiries.
The business set four key objectives:
- Reach high-intent students actively seeking PTE support.
- Generate qualified leads over general inquiries.
- Lower acquisition costs by reducing wasted spend.
- Build a stable, efficient system for scaling enrollments.
Ultimately, PTE HELPER needed a strategy that could balance volume and quality to ensure predictable growth.
3. Scaling Strategy And Execution By NEMI ADS
To address these challenges, NEMI ADS focused on optimizing the Google Ads account system and bidding efficiency rather than just increasing budget.
Strategic Intent-Based Restructuring
We reorganized the account into focused campaign clusters (High-intent, Branded, Location-based, etc.) to reflect actual student search behavior. This gave us granular control over budget allocation and ensured we targeted queries most likely to lead to enrollments.
Keyword Qualification & Ad Alignment
We refined the keyword list to prioritize commercial intent, aggressively filtering out irrelevant traffic (e.g., “free materials” or “job searches”). Simultaneously, ad copy was rewritten to focus on student decision triggers—like structured pathways and mock tests ensuring a perfect match between search intent and our offer.
Conversion Optimization & Controlled Scaling
We synchronized landing page messaging with ads to reduce friction and improved conversion tracking to measure high-value actions (consultations, form submissions). With accurate data, we applied a disciplined scaling model, prioritizing spend on top-performing groups while adjusting weaker segments to protect CPA and CPL.
Key Actions:
- Restructured 240+ active campaigns based on search intent.
- Reduced wasted spend by filtering low-intent and irrelevant queries.
- Aligned ads and landing pages to improve lead quality and conversion rates.
- Implemented smarter bidding for gradual, efficient scaling.
- Ongoing optimization through continuous search query mining and data analysis.
4. Results And Performance Impact
After implementing the new structure and optimization system, PTE HELPER saw a clear improvement in both lead generation and campaign efficiency. Within the campaign period, the account moved from inconsistent performance to a much more stable student acquisition model.
The results included:
- 21,900+ Total Conversions generated during the campaign period.
- 2.13 Million Clicks reached, reflecting a massive increase in search presence.
- Average Cost Per Conversion (CPA) maintained at ₫310K, demonstrating stable cost control even at high volume.
- Total Ad Investment of ₫3.589 Billion managed with a high Optimization Score of 98.6%.
- 90.8% of conversions effectively captured through mobile-optimized targeting.
- Monthly enrollment volume more than doubled compared to the previous period.
These results weren’t just from spending more. They came from improving traffic quality, narrowing search intent, and building a scalable system that maintained efficiency. Beyond higher lead volume, the real impact was the center’s new ability to generate demand while controlling costs and lead quality, making their growth truly sustainable.
5. Key Insights From NEMI ADS
This project highlights an important principle in Google Ads for education businesses: scaling is not about buying more clicks. It is about building a better system.
For English centers, success depends on more than visibility. It depends on targeting the right intent, presenting the right message, and measuring the right conversion actions.
The key lessons from this campaign were clear:
- A well-structured account creates better control over budget and performance
- High-intent keyword targeting matters more than broad traffic volume
- Better tracking leads to better decisions and more efficient scaling
- Stronger message match improves both lead quality and conversion rate
- Sustainable growth happens when budget increases are guided by data, not guesswork
At NEMI ADS, we focus on helping businesses scale with control, not chaos. By combining campaign structure, intent-based targeting, conversion tracking, and ongoing optimization, we help brands turn paid traffic into measurable business growth.
For PTE HEPLER, that meant moving from inconsistent lead generation to a clearer and more reliable enrollment system, with a stronger paid media foundation for brands that may also scale through Facebook ad accounts in the future.
