Perhaps you should try some spelling variations:
tuan human » than human, human human, run human
human gene » human genome, human gender, human bone
wing yan » wang yan, wing ian, wing tan
yan tuan » yan guan, yan yuan, anh tuan
yang jun » yang jui, pang jun, yang jin
wong sam » wong sau, wong lai, kong sar
yan jiu » yang jie, yang jin, pang jiu

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

• Performing a fuzzy search may retrieve terms with similar spellings: wing yan tuan human gene ((yan jiu) or (yang jun)) wong sam ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wing yan tuan human gene ((yan jiu) OR (yang jun)) wong sam ;*.