I might not know much about Gnutella, but you seem to have even less knowledge on that subject than me.

Nearly all of the gnutella clients search with 'AND', - but most of them also have an algorithm to find files with similar but not exactly the same filenames.

All of the 600 files I found contain "a beautiful mind divx", but strangely files containing "a beautiful divx" seem to be quite rare. And even weirder I found it, that I received one file 117 times from 117 different hosts but none of those files could be downloaded.