Perhaps you should try some spelling variations:
social exact » social effect, social et, social era
social email » social mail, social evil, social evils
social etats » social ethics
etats model » etas model, rats model, beats model
social jet » social je, social act, social jetlag
jet model » net model, set 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) OR (social email)) model ) OR ( social etats model ))) OR ( social jet model )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( ((social exact) OR (social email)) model ) or ( social etats model ))) or ( social jet model ))".
• Adding a wildcard symbol may retrieve word variants: (((( ((social exact) OR (social email)) model ) or ( social etats model ))) or ( social jet model ))*.