Perhaps you should try some spelling variations:
yang liang » wang liang, yan liang, yang yang
wang yong » wang yang, wang hyoung, wang yan
yong yang » yang yang, dong yang, ying yang
hoang hai » hong hai, dang hai, hoang h
yang hua » wang hua, yang hui, ying hua
hua gene » human gene, a gene, hua ren
wang lin » wang li, wang qin, yang lin

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

• If you are trying to use Boolean operators, they must be ALL CAPS: wang yong yang hua gene ((wang lin) OR (yang liang)) hoang hai ;~.
• Adding a wildcard symbol may retrieve word variants: wang yong yang hua gene ((wang lin) or (yang liang)) hoang hai ;*.