Perhaps you should try some spelling variations:
yan guan » gan guan, yan yuan, yang guang
guan hua » tuan hua, gui hua, tan hua
hua gene » human gene, a gene, hua ren
yang jui » yang judy, yang xi
wong sau » wong sam, wong siu, wong shiu
wan yan » wang yan, nan yan, wai yan
yang yi » yang xi

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 guan hua gene ((((yang jui) or (yang di))) or (yang yi)) wong sau ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wan yan guan hua gene ((((yang jui) OR (yang di))) OR (yang yi)) wong sau ;*.