Perhaps you should try some spelling variations:
sharing risk » sharing best, during risk
cost sharing » risk sharing, cost savings
gao ying » yao yang, fan ying, ka ying
how shih » how six
co ying » hoi ying
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) OR (gao 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) OR (gao ying)) eu cost sharing risk ((how she) OR (how shih)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "chen ((co ying) OR (gao ying)) eu cost sharing risk ((how she) or (how shih)) ;*".