Perhaps you should try some spelling variations:
sharing risk » sharing best, during risk
wang zhang » wang zheng, wang luhang, zhang zhang
zhang ying » zhang ming, zhang jing, zhang ping
risk cong » risk coping, risk among, risk along
end cost » end close, land cost, end iot
der cost » oder cost, user cost, debt cost

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: wang zhang ying ((end cost) OR (der cost)) sharing risk cong shu ;~.
• Adding a wildcard symbol may retrieve word variants: wang zhang ying ((end cost) or (der cost)) sharing risk cong shu ;*.