Perhaps you should try some spelling variations:
cost sharing » risk sharing, cost savings
sharing risk » sharing best, during risk
cheng tan » cheng han, chen tan, cheng guan
tan ying » fan ying, ran ying, tan yang
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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "cheng tan ying zhu cost sharing risk ((how shu) OR (how shih)) ;~".
• Adding a wildcard symbol may retrieve word variants: cheng tan ying zhu cost sharing risk ((how shu) OR (how shih)) ;*.