Perhaps you should try some spelling variations:
rent sharing » risk sharing, rent seeking, cost sharing
sharing oil » sharing our, sharing big, sharing his
yuan wang » yan wang, yuan chang, qian wang
yuan kang » yuan chang, chan kang, yuan kai
yang hui » yang jui, wang hui, yang muxi
kong » long, hong, pong

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: ((yuan wang) OR (yuan kang)) ((yang hui) OR (yang di)) rent sharing oil kong (sar OR star) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yuan wang) OR (yuan kang)) ((yang hui) or (yang di)) rent sharing oil kong (sar or star) ;~".
• Adding a wildcard symbol may retrieve word variants: ((yuan wang) OR (yuan kang)) ((yang hui) or (yang di)) rent sharing oil kong (sar or star) ;*.