Perhaps you should try some spelling variations:
yuan cheng » yuan chang, huang cheng, yu cheng
cheng yuan » cheng guan, cheng han, chen yulan
yuan wang » yan wang, yuan kang, yuan chang
wang jing » wang ning, wang liang, wang yang
wong shiu » wong siu, cong shu, song shin
kong saur » kong sar, kong siu, kong your
yan yuan » yan guan, fang yuan, nan yan
jing ji » ying jin

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

• Performing a fuzzy search may retrieve terms with similar spellings: yan yuan cheng yuan wang jing ji ((wong shiu) or (kong saur)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: yan yuan cheng yuan wang jing ji ((wong shiu) OR (kong saur)) ;*.