Perhaps you should try some spelling variations:
tang tang » taizong tang
tang min » chang min, sang minh, yang mind
min yuan » meng yuan, liu yuan, min aun
liu yang » liu yan, du yang, liu feng
zi yang » yi yang, hui yang, pei yang
yu fang » yu gang, yu wang, yu yang
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: tang tang min yuan ((zi yang) OR (liu yang)) ((yu fang) or (yi gang)) zheng ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tang tang min yuan ((zi yang) OR (liu yang)) ((yu fang) OR (yi gang)) zheng ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tang tang min yuan ((zi yang) OR (liu yang)) ((yu fang) or (yi gang)) zheng ;*".