Perhaps you should try some spelling variations:
cost sharing » risk sharing, cost savings
sharing risk » sharing best, during risk
wang yang » wang liang, wang yanling
among shu » cong shu, among eu, among sex
among sri » among sex, among di, among ers
hua cost » a cost, eu cost, run 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: dong ((wang yang) OR (wang yan)) hua cost sharing risk ((among shu) OR (among sri)) ;~.
• Adding a wildcard symbol may retrieve word variants: dong ((wang yang) or (wang yan)) hua cost sharing risk ((among shu) or (among sri)) ;*.