A couple of weeks ago, Google removed the "+" search command that allowed you to search for a specific spelling of a word or words (without Google correcting your spelling or stemming the word.) According to Google's research, two-thirds of the commands that used the "+" designator were using it incorrectly, so they replaced the "+" with the either using a double-quote or by clicking on the new advance tool called "Verbatim." (I'm actually thinking that someone in Google's marketing department mentioned that they needed to get rid of the "+" command because someone might confuse it with their social media site name of "Google+"… but that's probably just me being paranoid.)
I'm not one who argues against change, in fact I usually am one of the first to embrace these new features, but I have to say that I'm a little disappointed that Google dropped the one-step "+" command and replaced it with a two-step "double-quote" command (you have to close that quote!) and the three-step "Verbatim" resource (you have to run the search, then click "Show Search Tools" on the left-hand side of the results, and then click on "Verbatim" to get the results.)
Rest in peace my old friend "+" and long live "double-quote" and Verbatim… at least until some future round of enhancements comes along and finds that two-thirds of people are not using you correctly and finds a four-step process to make it easier.