Searchgum is a full-text search utility Search any files on your computer or local network by it content and file name. It will find anything you're looking for, even if you don't know how to spell it, or it is misspelled in the files.
The main features of SearchGun are:
searchs not only in file name but in file content;
approximate search (find keywords or phrase even if you don't know how to spell them);
supports different formats...