Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
yang wang » yang yang, yan wang, yang guang
hua gene » human gene, a gene, hua ren
yang jui » yang judy, yang di, yang xi
wong sau » wong sam, wong siu, wong shiu
yang ji » yang jie, yang jin, yang di
won sau » wong sam, wong siu

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

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