Perhaps you should try some spelling variations:
"general circulations" » "general calculations", "ageneral circulation", "cerebral circulations"
"general regulations" » "federal regulation", "gene regulation", "genetic regulation"
"general relative" » "general relating", "general relations", "general operative"
"general relation" » "general relations", "general revolution", "general formulation"
"general relativity" » "general relatively"

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 relative") OR ((((("general relation") OR ("general circulation"))) OR ((("general regulations") OR ("general circulations")))))))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"general relativity\") or (((\"general relative\") or (((((\"general relation\") OR (\"general circulation\"))) or (((\"general regulations\") or (\"general circulations\"))))))))".
• Removing quotes may allow a broader search: (( general relativity ) or ((( general relative ) or ((((( general relation ) OR ( general circulation ))) or ((( general regulations ) or ( general circulations )))))))).
• Adding a wildcard symbol may retrieve word variants: (("general relativity") or ((("general relative") or ((((("general relation") OR ("general circulation"))) or ((("general regulations") or ("general circulations"))))))))*.