I have strange result if I use those filters in sequence - second, third macro do not remove inappropriate files from listing. The only one that realy hides files is 1st macro. Other macros for 'tag' just remove bold letter style as shown in the screenshot.
I have forgotten about notation in angle brackets and tried to use chain of shorter keyword aliases (+: or tg:). This one bracked expression works fine for chaining several tags inside brackets and is a workaround. But several macros work wrong way.
Everything 1.5.0.1345a fixes an issue with subexpressions being incorrectly optimized away.
Everything was using subexpressions because find: was wrapped with < and >