Perhaps you should try some spelling variations:
economics department » economics development, economics experiments, economics management
economic department » economic debasement, academic department, economic experiment
department working » departments working, department boarding, department nursing
working papers » working paper
oecd economics » oecd economies, kcd economics, world economics
using paper » using panel, using page, using paired
founding » funding

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: (( oecd economic department working papers ) OR ( oecd economics department ((using paper) OR (((nursing fathers) OR (founding fathers)))) )).
• Adding a wildcard symbol may retrieve word variants: (( oecd economic department working papers ) or ( oecd economics department ((using paper) or (((nursing fathers) or (founding fathers)))) ))*.