Google Play is plagued with these ads and they are just scams most of the times. You search for an app and get ads from similarly names apps, apps with visually similar icons, ebooks to use the app you searched, etc. They prey on the less tech savvy to install this spam. There's zero user value in them.

When you think about it, why should you trust any app that tries to trick you when you’re looking for something else? It’s such awful behaviour, I don’t want any part of it, I don’t want to reward it so in any place where I can’t forcibly remove this trash I go out of my way to never click on the ad results even if in the rare case it’s exactly what I searched for.