Perhaps you should try some spelling variations:
"oecd economics department working paper" » "oecd economics development working paper", "oecd economics experiments working paper", "oecd economics management working paper", "oecd economics departments working paper", "oecd economics department boarding paper", "oecd economics department work paper", "oecd economic department working paper", "oecd economies department working paper", "world economics department working paper"
"oecd economics department working papers" » "oecd economics development working papers", "oecd economics experiments working papers", "oecd economics management working papers", "oecd economics departments working papers", "oecd economics department boarding papers", "oecd economics department work papers", "oecd economic department working papers", "oecd economies department working papers", "world economics department working papers"
"kcd economics department nursing cancer" » "kcd economics development nursing cancer", "kcd economics experiments nursing cancer", "kcd economics management nursing cancer", "kcd economics department guessing cancer", "kcd economics departments using cancer", "kcd economics department building cancer", "kcd economics department using cancer", "kcd economics department nursing career", "kcd economics department nursing concerns", "oecd economies department nursing cancer", "land economics department nursing cancer", "food economics department nursing cancer"

Try widening your search to All Fields.

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 economics department working paper") OR ("oecd economics department working papers"))) OR ("kcd economics department nursing cancer")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"oecd economics department working paper\") OR (\"oecd economics department working papers\"))) or (\"kcd economics department nursing cancer\"))".
• Removing quotes may allow a broader search: (((( oecd economics department working paper ) OR ( oecd economics department working papers ))) or ( kcd economics department nursing cancer )).
• Adding a wildcard symbol may retrieve word variants: (((("oecd economics department working paper") OR ("oecd economics department working papers"))) or ("kcd economics department nursing cancer"))*.