Perhaps you should try some spelling variations:
sharing learning » learning learning, measuring learning, teaching learning
sharing mining » sharing during
chen yiqun » chen yun, shen yijun
dong yang » dong hoang, wang yang, dan yang
yang yang » wang yang, wang yan
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 yang hua rent ((sharing mining) OR (sharing learning)) ((hong yu) OR (chen yiqun)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "dong yang yang hua rent ((sharing mining) OR (sharing learning)) ((hong yu) or (chen yiqun)) ;~".
• Adding a wildcard symbol may retrieve word variants: dong yang yang hua rent ((sharing mining) OR (sharing learning)) ((hong yu) or (chen yiqun)) ;*.