Perhaps you should try some spelling variations:
hua gene » human gene, a gene, hua ren
yang jie » yang jin, yang di, yang jui
wong sau » wong sam, wong siu, wong shiu
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 sau ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wan yan tan hua gene ((yang ji) OR (yang jie)) wong sau ;*".