Perhaps you should try some spelling variations:
wang liang » wang yang
wang yuhan » wang luhang, wang yan, wang yidan
wang tang » wang yang, tang tang, wang yan
yuhan tan » wuhan can
zhang han » zhang fan, zhang yan, zhang zhang
tan yang » dan yang, tan ying, tan yong
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 tang) OR (wang liang)) wang yuhan tan yang yi ((zhang han) OR (zhang hanmo)) ;~.
• Adding a wildcard symbol may retrieve word variants: ((wang tang) or (wang liang)) wang yuhan tan yang yi ((zhang han) or (zhang hanmo)) ;*.