Lightroom: Library filter / find / search text for multiple terms

In LR 3.4 the text search function is weak. There's no way to search on multiple terms using a boolean OR. The text filters as currently implemented are inadequate. Contains Words applies a logical AND so each word must be present in the field for a result to be returned.

My work-around is to search first on one term, add the results to a quick collection, then search on the next term and add those results to the same quick collection. It gets tedious. For example, a client requests high-res files for four images and sends me their ID numbers (filename) in an e-mail. I can't search 0807396, 1100234, 0403289, 9611236 in one operation so I can quickly pop them into the develop module, make adjustments, and then export them as TIFFs. BTW, I use detailed captions but have weak keywording in a library of about 110,000 images.

I use a FileMaker Pro database as my master image database (no previews). I'd like to be able to search within Lightroom much as I search in FileMaker. It's relatively intuitive and sufficiently powerful.