Perhaps you should try some spelling variations:
"social etats model" » "social ethics model", "social etas model", "social rats model", "social beats model", "social entats model"
"social asset model" » "social assets model", "social aspect model", "social aspects model", "social set model", "social market model", "social target model"
"social e model" » "social en model", "social e modelli"

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 etats model") OR ("social e model"))) OR ("social asset model")).
• Removing quotes may allow a broader search: (((( social etats model ) or ( social e model ))) or ( social asset model )).
• Adding a wildcard symbol may retrieve word variants: (((("social etats model") or ("social e model"))) or ("social asset model"))*.