I work for Google Search, and as I shared elsewhere, quoting still works. It really does. If you or anyone finds an example where you believe it doesn't, please let me know, and we'll debug. Typically the reasons people believe it is not working is because:
1) text appears in ALT text
2) text is not readily visible on a page (maybe in a menu bar or small text)
3) there's punctuation ("dog cat" will match "dog, cat"
4) page has changed after we've indexed it (so view the cached copy, if available)
I believe you! (see my other comment in response to the original one).
But it seems people don't (my original comment is being heavily downvoted because of this). And although they can't submit even one example, the fact that they don't believe you is obviously a symptom of a bigger problem.
For some reason, Google is losing the trust of power users.
1) text appears in ALT text 2) text is not readily visible on a page (maybe in a menu bar or small text) 3) there's punctuation ("dog cat" will match "dog, cat" 4) page has changed after we've indexed it (so view the cached copy, if available)