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 wang » yan wang, yuan kang, yuan chang
ying du » ying zhu, ying hua
yang du » yang di, yang d, yang mu
dean » dewan, jean, den

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 taizong tang yuan wang ((ying du) OR (yang du)) yang dean ;~.
• Adding a wildcard symbol may retrieve word variants: wang taizong tang yuan wang ((ying du) or (yang du)) yang dean ;*.