Perhaps you should try some spelling variations:
economics psychology » economic psychology, economics psychological, ecological psychology
economics sociology » economic sociology, economics ecology, economics sociological
organizational » organization

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: (organizational OR organizations) studies, ((economics sociology) OR (economics psychology)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(organizational or organizations) studies, ((economics sociology) OR (economics psychology))".
• Adding a wildcard symbol may retrieve word variants: (organizational or organizations) studies, ((economics sociology) OR (economics psychology))*.