Perhaps you should try some spelling variations:
wang taizong » wang shiyong, wang lihong, wang zaibang
tang yuan » fang yuan, wang yuhan, meng yuan
ting yang » ying yang, wang yang, yang yang
xiao yang » xiao zhang, xia fang, xiao yuan
tang yun » yang yun, chang yun, fang yuan
xi yang » xi kang, yi yang, liu yang

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