Perhaps you should try some spelling variations:
hua gene » human gene, a gene, hua ren
yang jie » yang jin, yang di, yang jui
wong sam » wong sau, wong lai, kong sar
wan yan » wang yan, nan yan, wai yan
yan tan » tan tan, yan clan, yan guan
tan hua » tuan hua, wang hua, tan chia
yang ji » yang jui, yang jin, yang di

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

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