Perhaps you should try some spelling variations:
"world bank chief economists" » "world bank chief economist", "world bank women economists", "world bank can economists", "world beck chief economists", "world bank chinese economists"
"world bank how economists" » "world bank how economics", "world bank _ economists", "world bank how economic", "world banks how economists"
"world beck women economic" » "world beck women's economic", "world beck sweden economic", "world beck foreign economic", "world back women economic", "world black women economic", "world best women economic", "world pack women economic", "world sick women economic"

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 bank chief economists") OR ("world bank how economists"))) OR ("world beck women economic")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"world bank chief economists\") OR (\"world bank how economists\"))) or (\"world beck women economic\"))".
• Removing quotes may allow a broader search: (((( world bank chief economists ) OR ( world bank how economists ))) or ( world beck women economic )).
• Adding a wildcard symbol may retrieve word variants: (((("world bank chief economists") OR ("world bank how economists"))) or ("world beck women economic"))*.