Perhaps you should try some spelling variations:
cost sharing » risk sharing, cost savings
sharing min » sharing oil, sharing mining, sharing risk
hong than » hong tan, long thanh, hong hai
dong cao » dong xiao
min hong » tin hong, minh cong, min jeong
a cost » _ cost
ya a » a a, ka a

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 (sin or sink))) ya a cost sharing min hong than ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong cao) OR (dong (sin OR sink))) ya a cost sharing min hong than ;.
• Adding a wildcard symbol may retrieve word variants: ((dong cao) or (dong (sin or sink))) ya a cost sharing min hong than ;*.