Perhaps you should try some spelling variations:
wan ming » kian ming, chan ming, yuan ming
hua gene » human gene, hua ren, hy5 gene
wong sam » wong sau, wong lai, kong sar
wong siu » wong shiu, kong siu, wong sau
wan wan » wan wen, wann war, wen wang
yan jiu » yang jie, yang jin, pang jiu
a gene » a genre, a gender, a gentle
yang » lang, wang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wan wan ming ((hua gene) or (a gene)) ((yan jiu) or (yang di)) ((wong sam) or (wong siu)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wan wan ming ((hua gene) OR (a gene)) ((yan jiu) OR (yang di)) ((wong sam) OR (wong siu)) ;.
• Adding a wildcard symbol may retrieve word variants: wan wan ming ((hua gene) or (a gene)) ((yan jiu) or (yang di)) ((wong sam) or (wong siu)) ;*.