Perhaps you should try some spelling variations:
cost sharing » risk sharing, cost savings
iran cost » urban cost, iran case, can cost
sharing a » sharing _
tan yang » tan ying, tan yong, tao yang
dan yang » daun yang, wang yang, yang yang
wong yue » wang yue, hong yu
a wong » y wong

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: zhang ((((tan yang) OR (wang yan))) OR (dan yang)) iran cost sharing a wong yue ;~.
• Adding a wildcard symbol may retrieve word variants: zhang ((((tan yang) or (wang yan))) or (dan yang)) iran cost sharing a wong yue ;*.