This dialog lets you
look for a term on the list of files found and displayed at the bottom half
of the main dialog.
What term to look for. For example, one can look for a
filename (whole or partial), a date, a file extension, etc.
Match whole word only
Ignores partial matches. For example, if you are searching for "mytest", "mytest.doc" will not match.
Uses upper/lower case when searching. For example, "test.doc" will not match "Test.doc".
Searches forward (down) or backward (up).