Google no longer (hasn't in a while) respected quotes. It's very hard to get Google to actually say there aren't any results even when in fact there are no matching results.
https://www.google.com/search?q=%22kgirbudidndijrjjr%22 gives me "Your search - "kgirbudidndijrjjr" - did not match any documents.", at least it will until they index this comment and find kgirbudidndijrjjr