Perhaps you should try some spelling variations:
wang wang » wang liang, wang yan, wang yong
wang yang » wang yan, wang liang, wang yanling
gene yang » gene bank
hua gene » human gene, a gene, hua ren
wong sam » wong lai, kong sar, von sam
wong sau » wong siu, wong shiu, wong lai
yang ji » yang jui, yang jie, yang jin

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

• Performing a fuzzy search may retrieve terms with similar spellings: wan ((wang wang) or (wang yang)) hua gene yang ji ((wong sam) or (wong sau)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wan ((wang wang) OR (wang yang)) hua gene yang ji ((wong sam) OR (wong sau)) ;*.