I play a game with google search: I take something very mainstream like a movie title, let's say 'Reservoir Dogs' And change something in it, to say 'Reservoir Cats' for example.

Google search 'reservoir cats' and it will completely ignore what you actually search for in favor of the mainstream result. The effect is basically that you can't sesrch for 'reservoir cats'!

Even putting something opposite or unrelated to the highly mainstream result will have no effect.

Its completely entirely ridiculous and makes the search engine seem like a facade.