Perhaps you should try some spelling variations:
cost sharing » risk sharing, cost savings
sharing risk » sharing best, during risk
cheng han » chen hao
han ying » fan ying, ran ying, tan ying
zhu cost » eu cost
how shih » how six, how she
how shu » how she, how slum

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

• Performing a fuzzy search may retrieve terms with similar spellings: cheng han ying zhu cost sharing risk ((how shu) OR (how shih)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "cheng han ying zhu cost sharing risk ((how shu) OR (how shih)) ;*".