Search Term What's The Game Called Where You Try To Find A Google Search Term With The Least Number Of Results?

What's the game called where you try to find a google search term with the least number of results? - search term

As a "urinating on the Liffey" - one of the search results!

The same applies to "pee in the Liffey.

Has no one pisses in the Liffey?

But seriously, I heard of this game when talking about the keywords used to produce only one result, but do not remember the name.