Perhaps you should try some spelling variations:
general relativity49 » general relativity93, ofgeneral relativity59, general relativity265
general relation » general relations, general regulations, general revolution
"general relativity" » "general relatively"
relativity49 » relatively49

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (("general relativity") OR ("((general relativity49) or (general relation))")).
• Removing quotes may allow a broader search: (( general relativity ) or ( ((general relativity49) or (general relation)) )).
• Adding a wildcard symbol may retrieve word variants: (("general relativity") or ("((general relativity49) or (general relation))"))*.