Perhaps you should try some spelling variations:
sharing learning » learning learning, measuring learning, teaching learning
sharing mining » sharing during
wang yuhan » wang luhang, wang yan, wang yidan
yuhan kai » yuan kai
hua risk » cva risk, era risk
long shu » cong shu, tong shui, long du

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yuhan kai ((hua risk) or (a risk)) ((sharing mining) OR (sharing learning)) long shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yuhan kai ((hua risk) OR (a risk)) ((sharing mining) OR (sharing learning)) long shu ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yuhan kai ((hua risk) or (a risk)) ((sharing mining) OR (sharing learning)) long shu ;*".