Perhaps you should try some spelling variations:
"world bandes working paper" » "world banners working paper", "world ranges working paper", "world panes working paper", "world bank's working paper", "world aedes working paper", "world bandar working paper", "world bandes working papers"
"world brand working paper" » "world band working paper", "world branch working paper", "world beyond working paper", "word brand working paper", "world bank working paper", "old brand working paper", "world brand working papers"
"world board working paper" » "world word working paper", "world hard working paper", "world cold working paper", "world toward working paper", "works board working paper", "world born working paper", "world board working papers"
"world bond working paper" » "world bonds working paper", "world band working paper", "world bold working paper", "world beyond working paper", "world blind working paper", "world blood working paper", "world bond 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 brand working paper") OR ("world board working paper"))) OR ("world bandes working paper"))) OR ("world bond working paper")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"world brand working paper\") OR (\"world board working paper\"))) or (\"world bandes working paper\"))) or (\"world bond working paper\"))".
• Removing quotes may allow a broader search: (((((( world brand working paper ) OR ( world board working paper ))) or ( world bandes working paper ))) or ( world bond working paper )).
• Adding a wildcard symbol may retrieve word variants: (((((("world brand working paper") OR ("world board working paper"))) or ("world bandes working paper"))) or ("world bond working paper"))*.