Perhaps you should try some spelling variations:
"societal effect model" » "societal effects model", "social effects model", "society affect model", "societal effects models", "societal effective model", "societal object model"
"society effects model" » "social effects model", "safety effects model", "velocity effects model", "society affects model", "societal effectss model", "satiety effectss model", "society effects models"
"society effect models" » "society affect models", "societal effects models", "satiety effects models", "society effects modelss", "society effective models", "society object models"
"social et model" » "social en model", "social e model", "social etats model", "social net model", "social set model", "social jet model"

Try widening your search to All Fields.

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 et model") OR ((("societal effect model") OR ((("society effects model") OR ("society effect models")))))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"social et model\") or (((\"societal effect model\") or (((\"society effects model\") OR (\"society effect models\"))))))".
• Removing quotes may allow a broader search: (( social et model ) or ((( societal effect model ) or ((( society effects model ) OR ( society effect models )))))).
• Adding a wildcard symbol may retrieve word variants: (("social et model") or ((("societal effect model") or ((("society effects model") OR ("society effect models"))))))*.