Perhaps you should try some spelling variations:
sharing risk » sharing best, during risk
chen zhang » cheng zhang, zhen zhang, chen zheng
zhang ying » zhang ming, zhang jing, zhang ping
end cost » end close, land cost, end iot
how some » how women
eu cost » au costa, der cost, eu court
how she » how safe, how shih

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

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