Perhaps you should try some spelling variations:
wing tan » wing ian, liang tan, hong tan
yang hua » wang hua, yang hui, ying hua
gene yan » gene bank, ren yan, see yan
wong sam » wong sau, wong lai, von sam
wong siu » wong shiu, kong siu, wong sau
yan jiu » yang jie, yang jin, pang jiu
judy » july
sar » sara, star, saur

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 ((yang hua) or (yang judy)) gene yan jiu ((((wong sam) or (wong siu))) or (kong sar)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wing tan ((yang hua) OR (yang judy)) gene yan jiu ((((wong sam) OR (wong siu))) OR (kong sar)) ;.
• Adding a wildcard symbol may retrieve word variants: wing tan ((yang hua) or (yang judy)) gene yan jiu ((((wong sam) or (wong siu))) or (kong sar)) ;*.