There could be several reasons why you are not getting sales after running Google ad campaigns. It's important to analyze various factors that might be contributing to this issue. Here are some potential reasons:

1. Targeting: One possible reason could be ineffective targeting. If your ads are not reaching the right audience, it's unlikely that they will convert into sales. Ensure that you have properly defined your target audience based on demographics, interests, and behavior. Review your ad campaign settings and make adjustments if necessary.

2. Ad Quality: Another reason could be poor ad quality. If your ads are not engaging, relevant, or appealing to your target audience, they may not generate the desired results. Ensure that your ad copy, visuals, and call-to-action are compelling and aligned with your audience's needs and expectations.

3. Landing Page Experience: Even if your ads are effective, a subpar landing page experience can deter potential customers. Make sure your landing page is optimized for conversions, with clear and concise messaging, easy navigation, and a strong value proposition. A poorly designed or confusing landing page can lead to high bounce rates and low conversion rates.

4. Competition: Consider the competitive landscape in your industry. If you are operating in a highly competitive market, it might be challenging to stand out and convert customers. Analyze your competitors' strategies, offers, and messaging to identify areas where you can differentiate yourself and attract customers.

5. Ad Budget and Duration: $70 might not be sufficient to gauge the effectiveness of your ad campaigns. Consider increasing your budget to allow for more visibility and testing. Additionally, monitor your campaigns over a longer period to gather sufficient data and optimize your ads based on performance trends.

6. Seasonality and Trends: Certain products or services may experience fluctuations in demand due to seasonality or changing trends. Research if there are any external factors impacting your industry or target market that could be affecting your sales. Adjust your campaigns accordingly to align with these trends.

7. Conversion Tracking and Analytics: Ensure that you have set up proper conversion tracking and analytics tools to accurately measure the performance of your campaigns. This will help you identify specific areas of improvement and make data-driven decisions.

It's important to note that achieving success with Google ad campaigns requires continuous testing, optimization, and monitoring. It may take some time and experimentation to find the right combination of targeting, ad quality, and landing page experience that resonates with your audience and drives conversions.

Remember, giving up after a single campaign or a small budget is not advisable. Instead, learn from the experience, make data-backed adjustments, and iterate your campaigns to improve their effectiveness.