Could this be added to the Search Tips page so it's discoverable? On Stack Overflow it's extremely helpful, and I only just heard about it a year after joining SO and being very active on the network.
This question had a bounty worth +50 reputation from rene that ended 12 hours ago. Grace period ends in 11 hours
This question has not received enough attention.
I'm using on-site search a lot and wasn't aware of this feature after being around for over 4 years here. It pops up on MSO as well http://meta.stackoverflow.com/questions/290729 so it's time to add a couple of lines of text