Perhaps you should try some spelling variations:
"social beasts model" » "social bases model", "social basis model", "social biases model", "social tests model", "social beasts made", "social yeasts modes"
"social beats model" » "social bots model", "social etats model", "social bias model", "social seats model", "social nets model", "social rats model"
"social rates model" » "social rate model", "social states model", "social roles model", "social rates models", "social bates 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 beats model") OR ("social beasts model"))) OR ("social rates model")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"social beats model\") OR (\"social beasts model\"))) or (\"social rates model\"))".
• Removing quotes may allow a broader search: (((( social beats model ) OR ( social beasts model ))) or ( social rates model )).
• Adding a wildcard symbol may retrieve word variants: (((("social beats model") OR ("social beasts model"))) or ("social rates model"))*.