Perhaps you should try some spelling variations:
"oecd economics departments working papers" » "oecd economics department working papers", "oecd economics experiments working papers", "oecd economics payments working papers", "oecd economics departments wrong papers", "oecd economics department nursing papers", "oecd economic departments working papers", "oecd economies departments working papers", "world economics departments working papers", "oecd economics departments working paper"
"kcd economics departments working papers" » "kcd economics department working papers", "kcd economics experiments working papers", "kcd economics payments working papers", "kcd economics departments wrong papers", "kcd economics department nursing papers", "kcd economics departments working paper", "oecd economies departments working papers", "land economics departments working papers", "food economics departments working papers"
"world economic departments working papers" » "world economics department working papers", "world economic experiments working papers", "world economic debasement working papers", "world economic department working papers", "world economic departments wrong papers", "world economic department nursing papers", "world economic departments working paper"
"world academic departments working papers" » "world academic department working papers", "world academic departments wrong papers", "world academic department nursing papers", "world academic departments working paper", "early academic departments working papers"

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