Unfortunately, 3 letters don’t activate FR search.
‘Agent’, by contrast, when the default search is changed from Keyword to Title, yields
https://freerepublic.com/focus/search?m=all;o=time;q=quick;s=Agent
Awkward, for sure, but does work.
Okay, I learned something new. I had assumed that if I type “IRS” for Title, then any article with “IRS” in the title would come up.