Perhaps you should try some spelling variations:
"world music working paper" » "world music making paper"
"world world working papers" » "world works working papers", "world work working papers", "world world making papers", "old world 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: (("world music working paper") OR ("world world working papers")).
• Removing quotes may allow a broader search: (( world music working paper ) or ( world world working papers )).
• Adding a wildcard symbol may retrieve word variants: (("world music working paper") or ("world world working papers"))*.