Perhaps you should try some spelling variations:
cost sharing » risk sharing, cost savings
sharing risk » sharing best, during risk
zhang zhang » zhen zhang, cheng zhang, zhang fang
risk coping » risk pooling
wang zheng » tang zheng, wang zhenpo, fang sheng
coping shu » cong shu
zhu cost » eu 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 zheng) OR (zhang zhang)) ying zhu cost sharing risk coping shu ;~.
• Adding a wildcard symbol may retrieve word variants: ((wang zheng) or (zhang zhang)) ying zhu cost sharing risk coping shu ;*.