Perhaps you should try some spelling variations:
huang yang » huang ying, huang chang, wang yang
yang yang » wang yang, wang yan
gene wang » gene bank, wen wang
hua gene » human gene, a gene, hua ren
wang tan » wang yan, wang ban, wang dan
tan wong » tan hong, tan kong, tan yong
wong yue » wang yue, hong yu

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: dong ((huang yang) OR (yang yang)) hua gene wang tan wong yue ;~.
• Adding a wildcard symbol may retrieve word variants: dong ((huang yang) or (yang yang)) hua gene wang tan wong yue ;*.