It's weird to say that reddit "works" with google. Every page they serve to google is stuffed full of hidden unrelated content, so any reddit result in google is unlikely to actually contain what you were searching for.
Google really should blacklist reddit entirely for this practice, but sadly as bad as reddit is it's still a much higher quality result than average for google.
Ugh it's absurd at how incompetent Google is at filtering out "related" content or similar volatile "sidebar" feeds in the sitesthey index that has nothing to do with the main content and won't be there when the user actually opens that link.
Google really should blacklist reddit entirely for this practice, but sadly as bad as reddit is it's still a much higher quality result than average for google.