Perhaps you should try some spelling variations:
wang tang » wang yang, wang liang, wang yan
tang tang » taizong tang
tang yuan » fang yuan, tang yun, wang yuhan
zhang han » zhang fan, zhang yan, zhang hanmo
tan yang » dan yang, tan yong, tao yang
tan ying » fan ying, ran ying, tan yong
yi zhang » li zhang, xi zhang, yi chang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang tang tang yuan ((tan yang) or (tan ying)) yi zhang han ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang tang tang yuan ((tan yang) OR (tan ying)) yi zhang han ;*.