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 nursing paper", "oecd economics department work paper", "oecd economies department working paper", "kcd economics department working paper", "world economics department working paper"
"oecd economic department boarding papers" » "oecd economic debasement boarding papers", "oecd economic experiment boarding papers", "oecd economic treatment boarding papers", "oecd economic department building papers", "oecd economic department cardiac papers", "oecd economic department imaging papers", "oecd economic department boarding pass", "oecd economic department boarding passes", "oecd economic department learning papers"
"oecd academic department working papers" » "oecd academic departments working papers", "oecd academic patent working papers", "oecd academic development working papers", "oecd academic department nursing papers", "oecd academic department work papers", "lead academic department working papers", "second academic department working papers", "world academic department working papers"

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 department boarding papers") OR ("oecd academic department working papers"))) OR ("oecd economics department working paper")).
• Removing quotes may allow a broader search: (((( oecd economic department boarding papers ) or ( oecd academic department working papers ))) or ( oecd economics department working paper )).
• Adding a wildcard symbol may retrieve word variants: (((("oecd economic department boarding papers") or ("oecd academic department working papers"))) or ("oecd economics department working paper"))*.