If it were true that my searches dictate what ads I get than I would be getting loads of apps related to ebook and other books, or anything to do with alternative music, movies and so on... Not nappies, formula and prams. I don't search for children stuff nor have I ever. That argument doesn't work in many cases.
I get poker games pirate king candy crush slot games coke adverts dating apps. I think it must be on shuffle i dunno there just random