Perhaps you should try some spelling variations:
cost sharing » risk sharing, cost savings
zhang yan » zhang fan, zhang jian, wang yan
sharing a » sharing _
yan yang » yang yang, yao yang, dan yang
yang yun » yang jun, tang yun, yang yue
yun cost » run cost, can cost, eu cost
wong yue » wang yue

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: zhang yan yang yun cost sharing a ((wong yue) OR (hong yu)) ;~.
• Adding a wildcard symbol may retrieve word variants: zhang yan yang yun cost sharing a ((wong yue) or (hong yu)) ;*.