Perhaps you should try some spelling variations:
costa sharing » cost sharing, data sharing, loss sharing
sharing risk » sharing best, during risk
zhang ying » zhang ming, zhang jing, zhang ping
zhang jin » zhang jian, zhang jing, shang jin
risk cong » risk coping, risk among, risk along
au costa » can costa, _ costa, da costa

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 jin)) au costa sharing risk cong shu ;~.
• Adding a wildcard symbol may retrieve word variants: wang ((zhang ying) or (zhang jin)) au costa sharing risk cong shu ;*.