Well, this is a situation that happens to me with some regularity. Let's say I want to use the forum search to find a thread or post which I know for sure to contain the phrase "I went to the blue mall this week". It's a rather specific phrase, and searching for it should net me the thread in question. However, if I did try to do that, I'd just get an error message saying that the search can't be done, because individually, none of the words are longer than 4 letters. Which is true, but I don't want to search (using Google terminology) I +went +to +the +blue +mall +this +week, but "I went to the blue mall this week", which, as a single coherent block of text, is way longer than 4 letters.
So, is it possible to do that?