Perhaps you should try some spelling variations:
sharing risk » sharing best, during risk
chen hao » cheng han
hao ying » gao ying, shao ting, chao hing
au costa » can costa, _ costa, da costa
eu cost » der cost, end cost, eu court
how shu » how shih, how slum
how she » how some, how safe, how shih

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: chen hao ying ((eu cost) OR (au costa)) sharing risk ((how shu) OR (how she)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "chen hao ying ((eu cost) OR (au costa)) sharing risk ((how shu) or (how she)) ;~".
• Adding a wildcard symbol may retrieve word variants: chen hao ying ((eu cost) OR (au costa)) sharing risk ((how shu) or (how she)) ;*.