Perhaps you should try some spelling variations:
development looking » development working, development linking, development making
development leading » development reading, development learning, developmental reading
oecd economies » oecd economic

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 economies ((development looking) OR (development leading)) papers.
• Adding a wildcard symbol may retrieve word variants: oecd economies ((development looking) or (development leading)) papers*.