Perhaps you should try some spelling variations:
cost sharing » risk sharing, cost savings
sharing risk » sharing best, during risk
how shih » how six
chen co » chen mo, when co, chen nico
co ying » hoi ying, gao ying
ying eu » ying zhu, using eu, ying hua
eu cost » au costa, der cost, end cost
how she » how some, how safe

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

• Performing a fuzzy search may retrieve terms with similar spellings: chen co ying eu cost sharing risk ((how she) or (how shih)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: chen co ying eu cost sharing risk ((how she) OR (how shih)) ;*.