Perhaps you should try some spelling variations:
yuhan zhang » yan zhang, yuan chang, yuehong zhang
wang yuhan » wang luhang, wang yan, wang yidan
zhang dai » zhang fan, zhang wei, zhang yan
dai reine » das reine, die reine, der reine
yang jie » yang jin, yang xi, yang jun
yang jui » yang judy, yang xi
yang yi » yang xi

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: wang yuhan zhang dai reine ((((((yang jie) OR (yang jui))) OR (yang yi))) OR (yang di)) cong shu ;~.
• Adding a wildcard symbol may retrieve word variants: wang yuhan zhang dai reine ((((((yang jie) or (yang jui))) or (yang yi))) or (yang di)) cong shu ;*.