Perhaps you should try some spelling variations:
sharing risk » trading risk
cost sharing » risk sharing, cost savings
yang yang » wang yang, wang yan, wang yong
among shu » among sex
among sri » among sex
yang yaa » wang yan, yang yi, nana yaa
hua cost » a cost, up cost, run cost

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

• Performing a fuzzy search may retrieve terms with similar spellings: dong ((yang yaa) OR (yang yang)) hua cost sharing risk ((among shu) or (among sri)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong ((yang yaa) OR (yang yang)) hua cost sharing risk ((among shu) OR (among sri)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "dong ((yang yaa) OR (yang yang)) hua cost sharing risk ((among shu) or (among sri)) ;".
• Adding a wildcard symbol may retrieve word variants: dong ((yang yaa) OR (yang yang)) hua cost sharing risk ((among shu) or (among sri)) ;*.