On Searching

I'm trying to use the Search box which appears near to the top of the Home page, but need a little advice.

I can enter terms like "Sentimental" and the search seems to pick up stories marked with a Sweet/Sentimental tag, as well as those which contain the word "Sentimental". Is there anything I can enter in the search box to restrict it to tags only?

Is there any way I can search on things like Standalone or Complete, which I understand are stored differently in our database?

Best wishes

Charlotte