Perhaps you should try some spelling variations:
"world brand working paper" » "world branch working paper", "world beyond working paper", "world demand working paper", "word brand working paper", "world bank working paper", "world board working paper", "world brand working papers"
"works board working paper" » "works word working paper", "works hard working paper", "works world working paper", "world board working paper", "works board working papers"
"world band working paper" » "world bandes working paper", "world based working paper", "world hard working paper", "world bank working paper", "world bond working paper", "world hand working paper", "world band working papers"
"world born working paper" » "world bonn working paper", "world boring working paper", "world baron working paper", "world board working paper", "world both working paper", "world body working paper", "world born 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 band working paper") OR ((("works board working paper") OR ("world born working paper"))))) OR ("world brand working paper")).
• Removing quotes may allow a broader search: (((( world band working paper ) or ((( works board working paper ) or ( world born working paper ))))) or ( world brand working paper )).
• Adding a wildcard symbol may retrieve word variants: (((("world band working paper") or ((("works board working paper") or ("world born working paper"))))) or ("world brand working paper"))*.