Perhaps you should try some spelling variations:
wang yuhan » wang luhang, wang yan, wang yidan
fang yuan » wang yan, meng yuan, tang yun
wong shiu » wong siu, cong shu, song shin
hua rene » juan rene
wong sau » wong sam, wong siu, wong lai
hua ren » hua chen
yan jiu » yang jie, yang jin, pang jiu

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) or (fang yuan)) wang ((hua rene) or (hua ren)) yan jiu ((wong sau) OR (wong shiu)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang yuhan) OR (fang yuan)) wang ((hua rene) OR (hua ren)) yan jiu ((wong sau) OR (wong shiu)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang yuhan) or (fang yuan)) wang ((hua rene) or (hua ren)) yan jiu ((wong sau) OR (wong shiu)) ;".
• Adding a wildcard symbol may retrieve word variants: ((wang yuhan) or (fang yuan)) wang ((hua rene) or (hua ren)) yan jiu ((wong sau) OR (wong shiu)) ;*.