Perhaps you should try some spelling variations:
social exact » social effect, social et, social email
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.

• If you are trying to use Boolean operators, they must be ALL CAPS: (( social exact model ) OR ((( social etats model ) OR ( social beats model )))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( social exact model ) or ((( social etats model ) OR ( social beats model ))))".
• Adding a wildcard symbol may retrieve word variants: (( social exact model ) or ((( social etats model ) OR ( social beats model ))))*.