Perhaps you should try some spelling variations:
cost sharing » risk sharing, cost savings
sharing his » sharing risk, sharing big, sharing dps
wang yao » wang yan, gang yao, wang tao
yang yao » yang yang, wang yan, yang yi
his song » his son, hays song
song shu » cong shu, song shin, tong shui
yang a » yang ka, yang _, fang a
yang 8 » yang _

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 yao) OR (yang yao)) ((yang a) OR (yang 8)) cost sharing his song shu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang yao) OR (yang yao)) ((yang a) or (yang 8)) cost sharing his song shu ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang yao) OR (yang yao)) ((yang a) or (yang 8)) cost sharing his song shu ;*.