Perhaps you should try some spelling variations:
department boarding » department building, department providing, department recording
economic department » economics department, economic debasement, academic department
department working » departments working, department nursing, department work
department boards » department records, department chairs, department part
working papers » working paper
oecd academic » lead academic, second academic, world academic

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 academic ((department boarding) OR (department boards)) papers ) OR ( oecd economic department working papers )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( oecd academic ((department boarding) OR (department boards)) papers ) or ( oecd economic department working papers ))".
• Adding a wildcard symbol may retrieve word variants: (( oecd academic ((department boarding) OR (department boards)) papers ) or ( oecd economic department working papers ))*.