What's interesting to me is that if I search for "You said in the post that quotes" the first result is the Twitter thread, with that quoted phrase bolded. the second result is some other site which is mirroring this thread itself. There are no more results, I only get those two.

However, if I search like you did for "quotes don't give" then I get the behavior you describe. So the quoting works sometimes, not others. Maybe based on length or something else, I'm not sure.