I usually hate to make "+1" posts, but I agree this is something that is desperately needed. I need to find all procedures where the value of a certain field from a certain table is being used, and if I search for the table name and the field name, I'm going to get a huge number of irrelevant results.
EDIT: Looking at this again, it does appear to do an AND search on a simple list of single-word terms. So my needs are met in that department. Obviously not so good in the original poster's case.
Avoid infestation. Rotate.