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?

Thanks