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
eu cost » au costa, der cost, end cost

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((zhang ying) OR (zhang jing)) eu cost sharing risk among shu ;~".
• Adding a wildcard symbol may retrieve word variants: wang ((zhang ying) OR (zhang jing)) eu cost sharing risk among shu ;*.