Perhaps you should try some spelling variations:
dong wang » dong yang, hong wang, dong hoang
yang yang » wang yang, wang yan
gene yang » gene bank
hua gene » human gene, a gene, hua ren
yang tan » yang fan, yang dean, liang tan
tan kong » tan hong
kong yu » hong yu, rong yu, kong your

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((dong wang) OR (yang yang)) ryanling hua gene yang tan kong yu ;~".
• Adding a wildcard symbol may retrieve word variants: ((dong wang) OR (yang yang)) ryanling hua gene yang tan kong yu ;*.