Perhaps you should try some spelling variations:
rent sharing » risk sharing, rent seeking, cost sharing
sharing risk » sharing best, during risk
dong yang » dong hoang, wang yang, dan yang
yang yang » wang yang, wang yan
among shu » cong shu, among eu, among sex
among sri » among sex, among di, among ers
yang hua » wang hua, yang hui, ying hua
hua rent » hua ren

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

• Performing a fuzzy search may retrieve terms with similar spellings: dong yang yang hua rent sharing risk ((among shu) or (among sri)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong yang yang hua rent sharing risk ((among shu) OR (among sri)) ;.
• Adding a wildcard symbol may retrieve word variants: dong yang yang hua rent sharing risk ((among shu) or (among sri)) ;*.