Refrain only

I just entered "O Come, Let Us Adore Him" from CLH2006 #47, set to ADESTE FIDELES (Ref. only), and was wondering if there was any way to search for texts that have been set to the refrain only. Of the top of my head I can't think how to filter for that given the engine provided. If I just want "O Come, Let Us Adore Him" instances, of course I can look for that as First Line. But what if I want to know what other texts may have been set to that (refrain only) tune?