MOVE ALONG
THIS ISN'T THE QUESTION YOU'RE LOOKING FOR.
This url hack really needs to be added to "Advanced Super Ninja Search Options" section on https://stackoverflow.com/search .
It will allow you to show only a bunch of questions with 'any' of the tags not 'and all these tags'.
So you can get things like
https://stackoverflow.com/questions/tagged/command-line+or+regex+or+ms-windows
and even
https://stackoverflow.com/unanswered/tagged/command-line+or+regex+or+ms-windows+or+ms-dos
which will set all those tabs to be just for those tags.