Perhaps you should try some spelling variations:
cost sharing » risk sharing, cost savings
sharing his » sharing risk, sharing big, sharing dps
yang yang » wang yang, wang yan
yan yang » yao yang, dan yang, tan yang
hua cost » a cost, eu cost, run cost
his cong » his son, his coat, his cows
wang » wing, wan

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

• Performing a fuzzy search may retrieve terms with similar spellings: (wang or lang) ((yan yang) or (yang yang)) hua cost sharing his cong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (wang OR lang) ((yan yang) OR (yang yang)) hua cost sharing his cong shu ;*.