Perhaps you should try some spelling variations:
wang yuhan » wang luhang, wang yan, wang yidan
yuhan ting » yuan ting
wong shiu » wong siu, cong shu, wong sau
ting hua » ming hua, ying hua, wang hua
hua rein » hua ren, hua wei, a rein
yang jie » yang jin, yang di, yang jui
yan jiu » yang jin, pang jiu
shin » skin, sein, thin

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

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