Perhaps you should try some spelling variations:
wang liang » wang yang
liang wang » liang dan, liang tan, liang ying
zhang han » zhang fan, zhang yan, zhang hanmo
tan yang » dan yang, tan ying, tan yong
kang han » kang chen, kong hang, dang hai
yan tan » tan tan, yan clan, yan guan
yang yi » yang di, yang xi, yang jui

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 liang wang yan tan yang yi ((kang han) OR (zhang han)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang liang wang yan tan yang yi ((kang han) or (zhang han)) ;*.