Perhaps you should try some spelling variations:
cost sharing » risk sharing, cost savings
sharing risk » sharing best, during risk
zhang ying » zhang ming, zhang jing, zhang ping
ying der » ding der
der cost » oder cost, user cost, debt cost
how shih » how six, how she
how shu » how she, how slum
zhen » zheng, when, chen

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: zhen zhang ying der cost sharing risk ((how shu) OR (how shih)) ;~.
• Adding a wildcard symbol may retrieve word variants: zhen zhang ying der cost sharing risk ((how shu) or (how shih)) ;*.