Use any word or words that are likely to be found in the name of the file you are seeking. Parts of words also will work.

A lot of people seem to be having the same search problem with Gnotella (including myself). Gnutella, despite its limitations and the fact it is no longer being developed, still works well enough, however.

By the way, please make files available on your machine. The more people that do this - and many, many do not - the more efficiently the network will function.