Perhaps you should try some spelling variations:
wang yuhan » wang luhang, wang yan, wang yidan
song wong » song chong, hong song, song bing
wong shiu » wong siu, cong shu, song shin
wing tan » wing ian, liang tan, hong tan
dong di » dong sin
yang xi » yang di, yang jui
yang yi » yang di, yang jui

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wing tan) or (dong di)) wang yuhan ((yang xi) or (yang yi)) song wong shiu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wing tan) OR (dong di)) wang yuhan ((yang xi) OR (yang yi)) song wong shiu ;*.