Perhaps you should try some spelling variations:
"oecd economics development working papers" » "oecd economic development working papers", "oecd economic developments working papers", "oecd economics development work papers", "oecd economics development within papers", "oecd economics development working paper", "oecd economies development working papers", "kcd economics development working papers", "world economics development working papers"
"oecd economics department working papers" » "oecd economics experiments working papers", "oecd economics management working papers", "oecd economics government working papers", "oecd economics departments working papers", "oecd economics department boarding papers", "oecd economics department nursing papers", "oecd economics department working paper", "oecd economies department working papers", "kcd economics department working papers", "world economics department working papers"
"oecd academic department working papers" » "oecd academic departments working papers", "oecd academic patent working papers", "oecd academic development working papers", "oecd academic department boarding papers", "oecd academic department nursing papers", "oecd academic department working paper", "lead academic department working papers", "second academic department working papers", "world academic department working papers"
"oecd economic treatment working papers" » "oecd taxonomic treatment working papers", "oecd economic investment working papers", "oecd oncologic treatment working papers", "oecd economic treatment forming papers", "oecd economic treatment looking papers", "oecd economic treatment during papers", "oecd economic treatment working paper"

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