There could be several reasons why you are not getting sales after running Google ad campaigns. Here are some potential factors to consider:

1. Targeting: It is crucial to ensure that your ads are reaching the right audience. If your targeting is too broad or inaccurate, you might be wasting your budget on people who are not interested in your product or service. Analyze your target audience and refine your targeting options accordingly.

2. Ad Relevance: The relevance of your ads to the target audience is essential. If your ads do not align with what users are searching for or if they do not clearly convey the value proposition of your product, people may not click on them. Make sure your ads have compelling headlines, relevant keywords, and engaging ad copy.

3. Landing Page Experience: Even if your ads are well-crafted, if your landing page does not deliver a seamless and optimized user experience, visitors may leave without taking any action. Ensure that your landing page is visually appealing, loads quickly, and provides clear information about your product or service. It should also have a clear call-to-action that encourages users to take the desired action, such as making a purchase or submitting a form.

4. Ad Budget and Duration: $70 may not be sufficient to gauge the effectiveness of your ad campaigns. Ad campaigns often require continuous optimization and testing to achieve optimal results. Consider allocating a larger budget and running your campaigns for a longer duration to gather more data and make informed decisions.

5. Competition and Market Factors: Your lack of sales could also be influenced by external factors such as intense competition, market saturation, or economic conditions. It is crucial to analyze the competitive landscape, understand your unique selling proposition, and adjust your ad campaigns accordingly.

6. Conversion Tracking: Make sure you have implemented proper conversion tracking on your website to accurately measure the effectiveness of your ad campaigns. Without tracking conversions, it becomes challenging to identify which ads or keywords are generating sales and which ones are not.

7. Ad Optimization: Regularly monitor and optimize your ad campaigns. Analyze the performance of different keywords, ad copies, and targeting options. Identify underperforming elements and make data-driven adjustments to improve your campaigns' effectiveness.

8. Seasonality: Certain products or services may experience fluctuations in demand based on the time of the year. If your product is highly seasonal, it is essential to consider this factor when analyzing your sales performance.

Remember, achieving success with online advertising requires patience, persistence, and continuous improvement. It may take time to fine-tune your campaigns and find the winning formula that drives sales. Consider seeking guidance from digital marketing experts or utilizing Google's resources and support to optimize your campaigns effectively.