Perhaps you should try some spelling variations:
taizong tang » tang tang
huang weng » huang cheng, huang jing, huang ting
wang tang » wang yang, tang tang, wang liang
fang yuan » wang yuhan, wang yan, meng yuan
cai huang » cai fang, fei huang
ying cai » yong cai
yuan li » yuan lin, guan li, yuan zi

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) or (taizong tang)) fang yuan li ying cai huang weng ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang tang) OR (taizong tang)) fang yuan li ying cai huang weng ;*.