Perhaps you should try some spelling variations:
"social choice/welfare economic/public choice" » "social choice/culture economic/public choice", "social change/welfare economic/public choice"
"social choice/welfare economics/public choice" » "social choice/culture economics/public choice", "social change/welfare economics/public choice"
"social choice/care economic/public choice" » "social change/care economic/public choice", "social choice/care economics/public choice", "social choice/more economic/public choice", "social choice/change economic/public choice"

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 choice/welfare economic/public choice") OR ("social choice/care economic/public choice"))) OR ("social choice/welfare economics/public choice")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"social choice/welfare economic/public choice\") OR (\"social choice/care economic/public choice\"))) or (\"social choice/welfare economics/public choice\"))".
• Removing quotes may allow a broader search: (((( social choice/welfare economic/public choice ) OR ( social choice/care economic/public choice ))) or ( social choice/welfare economics/public choice )).
• Adding a wildcard symbol may retrieve word variants: (((("social choice/welfare economic/public choice") OR ("social choice/care economic/public choice"))) or ("social choice/welfare economics/public choice"))*.