[Catch them all with the tilde (~)][1].

So <kbd>[windows~][2]</kbd> will show you all of the following:
 
 - windows
 - windows-xp
 - windows-7
 - but then it goes qwayzee and you get **everything** that starts with <kbd>windows</kbd>.


  [1]: http://meta.stackexchange.com/questions/1672/please-allow-wildcards-in-tag-searches
  [2]: https://superuser.com/questions/tagged/windows~