Perhaps you should try some spelling variations:
special respect » special aspects, special report, special effect
social effect » social effects, societal effect, special effect
respect model » aspect model, respective model, respect de
social exact » social etats, social et, social email
effect model » effect models, effects model, effects models

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: (((( social exact model ) OR ( social effect model ))) OR ( special respect model )).
• Adding a wildcard symbol may retrieve word variants: (((( social exact model ) or ( social effect model ))) or ( special respect model ))*.