Perhaps you should try some spelling variations:
cost sharing » risk sharing, cost savings
sharing oil » sharing our, sharing big, sharing his
yang yang » wang yang, wang yan
yan yang » yao yang, dan yang, tan yang
hua cost » a cost, eu cost, run cost
oil cong » oil cost, oil can, oil coal
wang » wing, wan, lang

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

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