Perhaps you should try some spelling variations:
wang yuhan » wang luhang, wang yidan, fang yuan
hua rene » hua ren, juan rene
rene yan » ren yan, rene ten, see yan
jiu wong » jiu cong, ji won, kie wong
wong sau » wong sam, wong siu, wong shiu
tan hua » tuan hua, wang hua, tan chia
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 (wang yan)) tan hua rene yan jiu wong sau ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang yuhan) OR (wang yan)) tan hua rene yan jiu wong sau ;".
• Adding a wildcard symbol may retrieve word variants: ((wang yuhan) OR (wang yan)) tan hua rene yan jiu wong sau ;*.