I use a minimum search term length of 2 in my forum.
A post containing the sentence
"This is new in Photoshop CS3"
will be found when I search for
"Photoshop CS3"
but not when I search for
"CS3"
Is this the intended behavior?
EDIT: If you're having this issue and running the latest version of UBB, you can switch the search method to internal and you'll be able to search for 3 character words.