> Bing is currently more literal-minded than Google. Google is using too much popularity-based machine learning to "correct" what you're searching for. It's become difficult on Google to search for a non-popular thing that happens to be close to a popular search target. Google does not treat quote marks as a mandatory exact match any more, just a hint.

One of the biggest things that irks me now about Google. Sometimes I want to search just for the word, "sofa" I don't need you to match it with "relevant" other words like "couch"