Perhaps you should try some spelling variations:
wang wang » wang yang, wang liang, wang yan
wang tan » wang yan, wang ban, wang dan
hua gene » human gene, a gene, hua ren
yang jie » yang jin, yang jui, yang yi
wong sam » wong sau, wong lai, kong sar
tan hua » tuan hua, wang hua, tan chia
yang xi » yang yi, yang jui

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

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