Perhaps you should try some spelling variations:
sharing risk » sharing best, during risk
risk coping » risk pooling
coping shu » cong shu
dong nan » dong yang, dong sin
dong cao » dong xiao, dan cao, yong cai
dong bin » dong sin, dong di, dann bin
hua cost » eu 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 nan) or (dong cao))) or (dong bin)) ya ((hua cost) or (a cost)) sharing risk coping shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((dong nan) OR (dong cao))) OR (dong bin)) ya ((hua cost) OR (a cost)) sharing risk coping shu ;.
• Adding a wildcard symbol may retrieve word variants: ((((dong nan) or (dong cao))) or (dong bin)) ya ((hua cost) or (a cost)) sharing risk coping shu ;*.