Perhaps you should try some spelling variations:
sharing mining » sharing during, sharing learning
rent sharing » risk sharing, rent seeking, cost sharing
dong hoang » hong hong
chen yiqun » chen yun, shen yijun
dong yang » wang yang, yang yang, dan yang
yang hua » wang hua, yang hui, ying hua
hua rent » hua ren
hong yu » wong yue

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: ((dong yang) OR (dong hoang)) yang hua rent sharing mining ((hong yu) OR (chen yiqun)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((dong yang) OR (dong hoang)) yang hua rent sharing mining ((hong yu) or (chen yiqun)) ;~".
• Adding a wildcard symbol may retrieve word variants: ((dong yang) OR (dong hoang)) yang hua rent sharing mining ((hong yu) or (chen yiqun)) ;*.