Perhaps you should try some spelling variations:
yan yang » yang yang, yao yang, dan yang
yang hua » wang hua, yang hui, ying hua
hua gene » human gene, a gene, hua ren
yang jin » yang jie, yang jun, ying jin
wong sau » wong sam, wong siu, wong shiu
yan jiu » yang jie, pang jiu
wang » wing, wan, lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yan yang hua gene ((yan jiu) OR (yang jin)) wong sau ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan yang hua gene ((yan jiu) OR (yang jin)) wong sau ;*".