Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
yun young » ju young
vinh tong » vinh long, minh cong, dinh tung
wen wang » wei wang, chen wang, weng fang
yang jin » yang jie, yang jun, ying jin
kim song » kim young, kim eung
tong hui » wang hui

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

• Performing a fuzzy search may retrieve terms with similar spellings: wen wang yang jin ((kim song) or (yun young)) vinh tong hui ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wen wang yang jin ((kim song) OR (yun young)) vinh tong hui ;*.