Perhaps you should try some spelling variations:
environment development » development development
special economic » spatial economics
social economic » socio economic, social economy, social ecological
local economic » global 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 ((((local economic) OR (social economic))) OR (special economic)) AND environment development (leed) working papers*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "oecd ((((local economic) OR (social economic))) or (special economic)) and environment development (leed) working papers*".