Perhaps you should try some spelling variations:
sharing risk » sharing best, during risk
cost sharing » risk sharing, cost savings
zhang ying » zhang ming, zhang ping, zhang ting
zhang jing » zhang ming, zhang jin, zhang ping
among shu » cong shu, among eu, among sex
der cost » oder cost, user cost, debt 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: wang ((zhang ying) OR (zhang jing)) der cost sharing risk among shu ;~.
• Adding a wildcard symbol may retrieve word variants: wang ((zhang ying) or (zhang jing)) der cost sharing risk among shu ;*.