Perhaps you should try some spelling variations:
wang yuhan » wang luhang, wang yan, wang yidan
yuhan gui » zhan gui
wong shiu » wong siu, cong shu, song shin
yang shi » yang chik, yang di, yang jui
wong sau » wong sam, wong siu, wong lai
gui hua » gui guan
hua ren » hua chen

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yuhan gui hua ren ((yang shi) or (wang zhi)) ((wong shiu) or (wong sau)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yuhan gui hua ren ((yang shi) OR (wang zhi)) ((wong shiu) OR (wong sau)) ;.
• Adding a wildcard symbol may retrieve word variants: wang yuhan gui hua ren ((yang shi) or (wang zhi)) ((wong shiu) or (wong sau)) ;*.