Perhaps you should try some spelling variations:
cost sharing » risk sharing, cost savings
sharing risk » sharing best, during risk
wang zhang » wang luhang, zhang zhang, wang liang
wang zheng » tang zheng, wang zhenpo, fang sheng
risk cong » risk coping, risk among, risk along
ying hua » ming hua, wang hua, ying zhu
ying eu » ying zhu, using eu

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