Perhaps you should try some spelling variations:
environment development » development development
employment development » employee development, development development, employment unemployment
global economic » global economy, regional economic
legal economic » regional economic, special economic, general economic
local economic » social economic, special economic
paper » papers

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