Perhaps you should try some spelling variations:
sharing risk » sharing best
during risk » using risk, during crises, during crisis
wang zhang » wang zheng, wang luhang, zhang zhang
zhang ying » zhang ming, zhang jing, zhang ping
how slum » how slow, how sub, how sun
ying eu » ying zhu, using eu, ying hua
eu cost » au costa, der cost, end 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 eu cost ((sharing risk) OR (during risk)) how slum ;~.
• Adding a wildcard symbol may retrieve word variants: wang zhang ying eu cost ((sharing risk) or (during risk)) how slum ;*.