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