And yet, if you use an unnameable search engine, and do a search for something like:
site:forum.us.forgeofempires.com ARC
You get a good selection of relevant links, without the issues Joeyjojojo mentioned. Also works well for common 2 letter abbreviations, like IA or BA.
Even a search for THE returns stuff that at least isn't total noise for such a vague search.
So it's not that this kind of search can't be done, and done well. It's that it hasn't been done here. Maybe it's not worth the effort, that unnameable search engine company has much deeper pockets than INNO.