Perhaps you should try some spelling variations:
development development » development developing, development environment
legal economic » local economic, global economic, regional economic
working papers » working paper
oecd legal » oecd local
unemployment » deployment

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 AND ((employment unemployment) OR (development development)) (leed) working papers.
• Adding a wildcard symbol may retrieve word variants: oecd legal economic and ((employment unemployment) or (development development)) (leed) working papers*.