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