Currently I use the
site keyword to search a specific forum, but I want to be able to do this in 2 forums in the same search result.
closest distance sites:www.math.com;www.mathworld.com
Is this possible?
Use the OR operator in all caps. See http://support.google.com/websearch/bin/answer.py?hl=en&answer=136861&rd=1.
For your example, we would enter: