Perhaps you should try some spelling variations:
general relationship » general relationships, generic relationship, generic relationships
general relations » general regulations, general reflections, general equations
relativity » 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 relationship) OR (general relations)) )).
• Adding a wildcard symbol may retrieve word variants: (( general relativity ) or ( ((general relationship) or (general relations)) ))*.