How to hide a tag during search

Hello!

I currently use this format to search for books in calibre :

languages:"=English" not tags:"=Romantic" not tags:"=Romantica" not tags:"=Romantica" not tags:"=Romantic" not tags:"=Romantic" not tags:"=Children"

is there any way to hide those tags but, only if it is the only tag the book has?

thanks for your help :)