Perhaps you should try some spelling variations:
employment development » employee development, development development, environment development
social economic » socio economic, social economy, social ecological
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 social economic AND employment development (leed) working papers.
• Adding a wildcard symbol may retrieve word variants: oecd social economic and employment development (leed) working papers*.