A google query? What does it even mean for a google query to be "100% right"? I'm not sure that's even a thing.
But I think you misunderstand software engineering and the nature of engineering skill or fields of experience. There may be no such thing as "100% right" when it comes to which hits are included in the result set for a google query, but I have no doubt that nearly any google engineer needs to write all sorts of code on a regular basis that indeed needs to be 100% right with regard to specifications or requirements.
Googles code quality isn't all its cracked up to be and you have a least heard of OSI? You know the other networking standard that was at least a decade ahead of the internet back then.
Okay, that's cool, if you want to talk on the internet about how you're obviously a better programmer than anyone that works at Google becuase you worked on an ancient over-engineered standard that basically ended up losing out to TCP/IP... who am I to stop you?