spotlight within found files

hello

i find myself often finding a number of files, tagged and nicely listed by punakea, but then i don't know in which of these files the passsage is i am looking for. it would thus be nice to do a fulltext spotlight search on the files found with a certain tag set. i tried searching the alias-folderstructure, but that doesn't work.

any clues? otherwise, this might be a new feature...

thanks, michi