Perhaps you should try some spelling variations:
cost sharing » risk sharing, cost savings
rent sharing » risk sharing, rent seeking
yuan wang » yan wang, yuan kang, yuan chang
yang muxi » yang xi, yang hui, yang mu
yang jui » yang judy, yang di, yang xi
hong sau » wong sau, hong paul, kong sar

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 ((yang jui) OR (yang muxi)) ((rent sharing) OR (cost sharing)) oil hong sau ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "yuan wang ((yang jui) or (yang muxi)) ((rent sharing) OR (cost sharing)) oil hong sau ;~".
• Adding a wildcard symbol may retrieve word variants: yuan wang ((yang jui) or (yang muxi)) ((rent sharing) OR (cost sharing)) oil hong sau ;*.