Perhaps you should try some spelling variations:
lang yuan » wang yuhan, meng yuan, tang yun
fang yuan » wang yuhan, wang yan, meng yuan
gene yang » gene bank
yang tan » yang fan, yang dean, yang yang
hong yu » wong yue
wang a » wang _, fang a, lang a
a gene » a genre, a gender, a gentle

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((lang yuan) or (fang yuan)) wang a gene yang tan hong yu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((lang yuan) OR (fang yuan)) wang a gene yang tan hong yu ;.
• Adding a wildcard symbol may retrieve word variants: ((lang yuan) or (fang yuan)) wang a gene yang tan hong yu ;*.