Perhaps you should try some spelling variations:
wang taizong » wang shiyong, wang lihong, wang zaibang
taizong tang » tang tang
tang yuan » fang yuan, tang yun, wang yuhan
yuan tan » huan t'an, yuan kang, yuan ting
kang han » kang chen, kong hang, zhang han
yang yi » yang di, yang jui
yang xi » yang di, yang jui

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "wang taizong tang yuan tan ((yang yi) OR (yang xi)) kang han ;~".
• Adding a wildcard symbol may retrieve word variants: wang taizong tang yuan tan ((yang yi) OR (yang xi)) kang han ;*.