Perhaps you should try some spelling variations:
wing yan » wang yan, wing ian, wing tan
yan tuan » yan guan, yan yuan, anh tuan
hua gene » human gene, hua ren, hy5 gene
yang jin » yang jie, yang jun, ying jin
wong sau » wong sam, wong shiu, wong lai
wong siu » wong shiu, kong siu, wong siew
yan jiu » yang jie, pang jiu
a gene » a genre, a gender, a gentle

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

• Performing a fuzzy search may retrieve terms with similar spellings: wing yan tuan ((hua gene) or (a gene)) ((yan jiu) or (yang jin)) ((wong sau) OR (wong siu)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wing yan tuan ((hua gene) OR (a gene)) ((yan jiu) OR (yang jin)) ((wong sau) OR (wong siu)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wing yan tuan ((hua gene) or (a gene)) ((yan jiu) or (yang jin)) ((wong sau) OR (wong siu)) ;".
• Adding a wildcard symbol may retrieve word variants: wing yan tuan ((hua gene) or (a gene)) ((yan jiu) or (yang jin)) ((wong sau) OR (wong siu)) ;*.