Perhaps you should try some spelling variations:
cost sharing » risk sharing, cost savings
sharing minh » sharing mining, sharing risk, sang minh
dong sign » dong sin, dong bin
minh dang » minh cong
dong cao » dong xiao
a cost » _ cost
ya a » a a, ka a
hai » hadi, hair, haji

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((dong cao) or (dong sign)) ya a cost sharing minh dang hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong cao) OR (dong sign)) ya a cost sharing minh dang hai ;*.