Perhaps you should try some spelling variations:
cost sharing » risk sharing, cost savings
sharing risk » sharing best, during risk
dong sign » dong sin, among sign, dong bin
dong cao » dong xiao, dan cao, dong nan
hong hai » shang hai, zhong tai, dang hai
ya a » y a, ye a, yu a
a a » a la
tan » than

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: ((dong cao) OR (dong sign)) ((ya a) OR (a a)) cost sharing risk ((hong hai) OR (hong tan)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((dong cao) or (dong sign)) ((ya a) OR (a a)) cost sharing risk ((hong hai) or (hong tan)) ;~".
• Adding a wildcard symbol may retrieve word variants: ((dong cao) or (dong sign)) ((ya a) OR (a a)) cost sharing risk ((hong hai) or (hong tan)) ;*.