Perhaps you should try some spelling variations:
tang tang » taizong tang
tang liu » tang li, dong liu, tang jie
liu yuan » liu yan, liu jiyuan, liu yu
liu gang » liu gangs, liu yang, liu feng
yuan zi » yan zi, yuan li, yuan fei
zi yang » yi yang, liu yang, hui yang
yu fang » yu gang, yu wang, yu yang
li gang » ii gang, i gang, li wang

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 liu yuan zi yang ((yu fang) or (((li gang) OR (liu gang)))) zheng ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tang tang liu yuan zi yang ((yu fang) OR (((li gang) OR (liu gang)))) zheng ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tang tang liu yuan zi yang ((yu fang) or (((li gang) OR (liu gang)))) zheng ;*".