Perhaps you should try some spelling variations:
chinese economists » chinese economics, chinese economies, chinese economic
bank chinese » link chinese, task chinese, banking chinese
men economic » mena economic, man economic, ten economic
world sick » world since, world six, world si
sick men » sick man, sick men's, sick women

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 chinese economists ) OR ( world sick men economic )).
• Adding a wildcard symbol may retrieve word variants: (( world bank chinese economists ) or ( world sick men economic ))*.