Perhaps you should try some spelling variations:
social effect » social effects, societal effect, special effect
social exact » social et, social email, social era
social etats » social ethics
social beats » social beasts, social bots, social bias
etats model » etas model, rats model, hats model
beats model » beasts model, seats model, nets model

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "\"((\\"((social exact) OR (social effect)) model\\") or (((\\"social etats model\\") or (\\"social beats model\\"))))\"".
• Removing quotes may allow a broader search: (( ((social exact) OR (social effect)) model ) or ((( social etats model ) or ( social beats model )))).