Perhaps you should try some spelling variations:
yuan cheng » yuan chang, huang cheng, yu cheng
wang yuan » wang yuhan, wang yan, fang yuan
cheng hao » chen hao, cheng han, cheng hsiao
wang yang » wang yan, wang liang, wang yanling
gang hari » dang hai
dang haji » dang hai, dato haji
hao wang » hao zhang, hwa wang, yan wang
yang jin » yang jie, yang jun, 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: wang yuan cheng hao wang yang jin ((gang hari) or (dang haji)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yuan cheng hao wang yang jin ((gang hari) OR (dang haji)) ;*.