Perhaps you should try some spelling variations:
"world bank new economics" » "world bank law economics", "world bank new economy", "world bank new economys"
"world bank new economic" » "world bank new economy"
"world banks _ economists" » "world bank's _ economists", "work banks _ economists", "world back _ economists"

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