Perhaps you should try some spelling variations:
"world bank chief economists" » "world bank chief economist", "world bank how economists", "world bank can economists", "world beck chief economists", "world bank chinese economists"
"world beck women economists" » "world beck modern economists", "world beck women chemists", "world beck how economists", "world back women economists", "world black women economists", "world best women economists", "world pack women economists", "world sick women 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 beck women 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 beck women economists\") OR (\"world beck women economic\"))))".
• Removing quotes may allow a broader search: (( world bank chief economists ) or ((( world beck women economists ) OR ( world beck women economic )))).
• Adding a wildcard symbol may retrieve word variants: (("world bank chief economists") or ((("world beck women economists") OR ("world beck women economic"))))*.