Perhaps you should try some spelling variations:
cost sharing » risk sharing, cost savings
iran cost » urban cost, iran case, can cost
sharing y » sharing _, sharing a, sharing 5
yan yang » yang yang, yao yang, yan wang
tan yang » tan ying, tan yong, tao yang
dan yang » daun yang, wang yang, yang yang
wong yue » wang yue, hong yu

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

• Performing a fuzzy search may retrieve terms with similar spellings: zhang ((((yan yang) OR (tan yang))) or (dan yang)) iran cost sharing y wong yue ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: zhang ((((yan yang) OR (tan yang))) OR (dan yang)) iran cost sharing y wong yue ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "zhang ((((yan yang) OR (tan yang))) or (dan yang)) iran cost sharing y wong yue ;*".