Quoted words in the search should return only pages with that actually on the page. That used to work. Now it often shows pages that don't contain it all, not in the search results page itself, nor on the page when you go there. So you'd think it just ignored the quoted text and gave me results without it instead, right? Wrong. Removing the quoted text to either unquoted text or removing it entirely both result in different results. So it DOES process the quotes SOMEHOW. But it's not a clear RULE because probably it's also just processed as an input to the semantics engine. Just tell me you don't have any pages with the text instead, please. Which it actually also some sometimes...
It's an unfixable mess. And I don't think this can be turned back. Building a competitor costs hundreds of billions. A competitor will likely end up taking the same approach anyway.
I just wanted a list of google's big search engine updates but even searching this I get SEO-d blogspam ABOUT THE SEO IMPACT OF THE UPDATES.