Perhaps you should try some spelling variations:
economies development » economics development, economics developments, economic developments
department nursing » department guessing, department building, department getting
departments using » compartments using, departments auditing, department guessing
working papers » working paper

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