Perhaps you should try some spelling variations:
sharing risk » sharing best, during risk
zhang ying » zhang ming, zhang jing, zhang ping
der cost » oder cost, user cost, debt cost
how shih » how six
eu cost » au costa, end cost, eu court
how she » how some, how safe
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 ying ((eu cost) OR (der cost)) sharing risk ((how she) or (how shih)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: zhen zhang ying ((eu cost) OR (der cost)) sharing risk ((how she) OR (how shih)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "zhen zhang ying ((eu cost) OR (der cost)) sharing risk ((how she) or (how shih)) ;*".