Searching two sites at once using Google? [closed]
It appears to work by doing this:
vbscript site:serverfault.com OR site:stackoverflow.com
Of course, this could be a false positive and would require further testing
Edit: It definitely works, as demonstrated in the Results Summary:
Results 1 - 10 of about 9,080 from serverfault.com OR stackoverflow.com for vbscript. (0.06 seconds)