Why my ad is not showing on the first page?

Ads are shown by date added from the most recent to the oldest on the site, and over time the ads will be added to the following pages in advance, this is the normal behavior of all ads.

 

How do I make sure my ad appears when I search for it?

You can make sure your ad appears in search results by choosing keywords you think viewers are more likely to use when searching for your ad.