Perhaps you should try some spelling variations:
oecd development » child development, based development, oriented development
centre working » centred working, century working, capture working
center working » centred working, century working, inter working
genre working » gender working, we're working, geese working

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 development ((((centre working) OR (genre working))) OR (center working)) papers.
• The words AND, OR and NOT may confuse the search; try adding quotes: "oecd development ((((centre working) OR (genre working))) or (center working)) papers".
• Adding a wildcard symbol may retrieve word variants: oecd development ((((centre working) OR (genre working))) or (center working)) papers*.