Ah.. I think I understand what you're after. (Don't know what I was thinking with that last example.

)
Essentially, filter the current selection to just those that are tagged?
Maybe there is a better way to search for tagged items, but I gave up trying and opted for inverting a search for those not tagged.
As an actual quick search this should work:
If you want to script that put it in a goto:
It seems Quick Search does not support the list/selected items shortcuts so if you want to use the quicksearch SC this should do:
Code: Select all
text quicksearch('!tags:""', get('SelectedItemsPathNames'));
Since you're searching through the selected items I'm not sure the '/t' switch really does much here, but you can experiment and report back.
