Perhaps you should try some spelling variations:
cost sharing » risk sharing, cost savings
sharing risk » sharing best, during risk
risk coping » risk pooling
wang zhang » wang zheng, wang luhang, zhang zhang
zhang fang » zhang fan, zhang zhang, zhang yan
coping shu » cong shu
ying der » ding der
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) OR (zhang fang)) ying der cost sharing risk coping shu ;~.
• Adding a wildcard symbol may retrieve word variants: ((wang zhang) or (zhang fang)) ying der cost sharing risk coping shu ;*.