Perhaps you should try some spelling variations:
savings risk » ratings risk, savings cross, savings rate
wang luhang » wang lihong, wang yuhan, wang susheng
risk coping » risk pooling
wang liang » wang yang
coping shu » cong shu
hua cost » a cost, run cost
eu cost » au costa, der cost, end cost

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang luhang) OR (wang liang)) ying ((hua cost) or (eu cost)) savings risk coping shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang luhang) OR (wang liang)) ying ((hua cost) OR (eu cost)) savings risk coping shu ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang luhang) OR (wang liang)) ying ((hua cost) or (eu cost)) savings risk coping shu ;*".