Perhaps you should try some spelling variations:
cost sharing » risk sharing, cost savings
sharing tan » sharing tags, sharing a, sharing bad
wong shiu » wong siu, cong shu, song shin
yan yang » yang yang, yao yang, dan yang
wong yue » wang yue, hong yu
wan yan » nan yan, wai yan, wang yang
yang xi » yang di, yang yi, yang jui
xi cost » ii cost, di costo, die cost

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: wan yan yang xi cost sharing tan ((wong shiu) OR (((wong yue) OR (wang yan)))) ;~.
• Adding a wildcard symbol may retrieve word variants: wan yan yang xi cost sharing tan ((wong shiu) or (((wong yue) or (wang yan)))) ;*.