There was a rash of nodes when it happened, I will try to post them here later. (UPDATE, here's one; Bring Back the Old Supersearch)

I do not believe searching for XML and Perl would work, because words of less than 4 char's simply are not indexed. Unless you mean with the quotes, in which case it has been my impression that super search is does heed phrases like that.

--
perl -pew "s/\b;([mnst])/'$1/g"