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