Perhaps you should try some spelling variations:
development development » development developing, development environment
legal economic » local economic, global economic, regional economic
oecd legal » oecd local

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 ((development development) OR (environment development)) (leed) ((working papers) OR (working paper)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "oecd legal economic and ((development development) or (environment development)) (leed) ((working papers) OR (working paper))".
• Adding a wildcard symbol may retrieve word variants: oecd legal economic and ((development development) or (environment development)) (leed) ((working papers) OR (working paper))*.