Perhaps you should try some spelling variations:
sharing risk » sharing best
during risk » using risk, during crises, during crisis
zhang ping » zhang ming, zhang jing, zhang ting
how some » how women
ping eu » ping ku, ping yu, ping ceo
eu cost » au costa, der cost, end cost
how she » how safe, how shih
zhen » zheng, when, chen

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

• Performing a fuzzy search may retrieve terms with similar spellings: zhen zhang ping eu cost ((sharing risk) OR (during risk)) ((how she) or (how some)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: zhen zhang ping eu cost ((sharing risk) OR (during risk)) ((how she) OR (how some)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "zhen zhang ping eu cost ((sharing risk) OR (during risk)) ((how she) or (how some)) ;*".