Can SearchGenerator be modified to support 'LIKE' queries?

I have a site where I have used searchGenerator as my search engine.
Thus far it seems to work fairly well, however, it does not appear as
though it supports 'like' queries. Does anyone know if it is possible
to modify the code behind it so that it will support 'like' queries in
addition to exact queries? I have taken a look at the code and could
not see any place where the queries could be modified. If it is not
possible to alter searchGenerator, can you recommend any other search
solutions exists that support 'like' queries?