Perhaps you should try some spelling variations:
huang cheng » huang chang, hong cheng, huang weng
wang tang » wang yang, tang tang, wang liang
tang fang » tang tang, zhang fang, yang fan
fang yuan » wang yuhan, wang yan, meng yuan
liu yang » liu yan, du yang, liu feng
xi huang » fei huang, 16 huang, d huang
li yang » li ying, li gang, li wang

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 tang fang yuan ((li yang) OR (liu yang)) xi huang cheng ;~.
• Adding a wildcard symbol may retrieve word variants: wang tang fang yuan ((li yang) or (liu yang)) xi huang cheng ;*.