I'd like to search all sites for "Wikipedia", but exclude Stack Overflow because the questions there are totally out of the scope I'm looking for.
By reading the How do I search? page, I see that:
- I can search on one site only, if I use
- I can exclude results, if I use something like
The problem is:
Wikipedia -url:stackoverflow doesn't seems to work. I was expecting that it would search all sites excluding Stack Overflow.
Do I get a syntax error for the semantics that I seek, or is this operation not supported by the 'search all sites' feature?