The good thing; when just searched for something about UIView and later type something "populating a table", it'll give me SO articles (and such) about UITableView which is what I meant but forgot to type add ios/or uitable.
The bad thing; when i'm doing research, it'll give me the same stuff over and over again and I have to page quite far and add / remove query info / play with search tools to get to different things which might not be the most popular or might not be what Google thinks I want.
The awful thing; the ads... I use ad blockers, but when I get ads (gmail / some sites), they are always the same. For Facebook I just think their algorithm is broken or maybe they have none (I only get ads about dating, cheating, stocks all of which I have no interest in nor ever shown), but for Google they show things I am interested in but I already know all of them, have been there, knew most of them before those ads and they cannot possibly sell me anything. If I wanted something from them I would go there without those ads, so why are they targeting me like that? Show me ads I don't know and if I can use it, I would click.
I'm technical, but I hear the same annoyance from others; a friend of mine rents out houses; the search results when he wants to research the competition are usually almost only his own sites (presumably because he visits them a lot?) and ads for his own properties. He is very non technical, so explaining this all to him is not really sinking in.