How do I perform boolean (AND and OR) searches and negation? Note: I couldn't find this information in other "advanced search" questions (1) (2) or in Search Tips.

I am searching Stack Overflow for "Google Checkout" questions. My search gives me a few results tagged google-checkout, but I also get lots of questions about various revision control systems checkout command. I've tried to remove "SVN" from my search via the following methods, but none of them seem to work:

Why don't I just look at the questions in the google-checkout tag? Because many questions were incorrectly tagged as both google and checkout (I'm fixing the problems as I see them).

Please re-tag appropriately (i.e. is this a support question or feature request?)

Jeff mentioned how to exclude a tag from a search:

"google checkout" -[svn]

will search for the phrase "google checkout" while excluding all items tagged [svn]. It looks like the syntax for excluding tags -[tag] is missing from the Search Tips page. Could someone add it?

1 Answer 1


hmm, well, have you tried

"google checkout" -[svn]


Hmm, now that I look at that, I guess this wasn't really documented anywhere. My bad. :(

  • 1
    @jeff is this a documented feature?
    – user132619
    Jul 31, 2009 at 7:31
  • 1
    This still needs to be documented (4 years later)
    – Eponymous
    Aug 14, 2012 at 15:12
  • 1
    ...and still requires documentation now.
    – nanofarad
    Oct 13, 2012 at 0:45

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