Perhaps you should try some spelling variations:
wang yuhan » wang luhang, wang yan, wang yidan
yang hong » wang hong, yang hongli, quang hong
hong wang » hong gang, hong kong, hong jong
yuhan tan » wuhan can
tan yang » dan yang, tan ying, tan yong
eang hay » dang hai
kang han » kang chen, kong hang, zhang han

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: yang hong wang yuhan tan yang di ((eang hay) OR (kang han)) ;~.
• Adding a wildcard symbol may retrieve word variants: yang hong wang yuhan tan yang di ((eang hay) or (kang han)) ;*.