Perhaps you should try some spelling variations:
employment development » development development, environment development, employment unemployment
legal economic » local economic, global economic, regional economic
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 ((legal economic) OR (regional economics)) AND ((employment development) OR (employee development)) (leed) working papers.
• The words AND, OR and NOT may confuse the search; try adding quotes: "oecd ((legal economic) or (regional economics)) and ((employment development) OR (employee development)) (leed) working papers".
• Adding a wildcard symbol may retrieve word variants: oecd ((legal economic) or (regional economics)) and ((employment development) OR (employee development)) (leed) working papers*.