That type of search is probably best handled in the database. Either way you would have to search all the data for such flexible wildcard searches. I am assuming you can search the text for any other text embedded in it.
The soul is dyed the color of its thoughts. Think only on those things that are in line with your principles and can bear the light of day. The content of your character is your choice. Day by day, what you do is who you become. Your integrity is your destiny - it is the light that guides your way. - Heraclitus