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