Perhaps you should try some spelling variations:
wang taizong » wang shiyong, wang lihong, wang zaibang
taizong tang » tang tang
tang huan » wang hua, tan hua, tang chun
tan yang » dan yang, tan ying, tao yang
tan yong » tan hong, tan kong, tan ying
xi kang » jin kang, xi zhang
yi gang » ii gang, i gang, li gang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang taizong tang huan ((tan yang) OR (tan yong)) ((xi kang) or (yi gang)) han ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang taizong tang huan ((tan yang) OR (tan yong)) ((xi kang) OR (yi gang)) han ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang taizong tang huan ((tan yang) OR (tan yong)) ((xi kang) or (yi gang)) han ;*".