Perhaps you should try some spelling variations:
wang liang » wang yang
yang yang » wang yang
gene yang » gene bank
hua gene » human gene, a gene, hua ren
yang jin » yang jie, yang jun, ying jin
jin wong » jin song, john wong, jin ying
wong sau » wong sam, wong siu, wong shiu
yan yan » yan yuan, nan yan, qian yan

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

• Performing a fuzzy search may retrieve terms with similar spellings: wan ((((((yan yan) OR (yang yang))) or (wang yan))) or (wang liang)) hua gene yang jin wong sau ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wan ((((((yan yan) OR (yang yang))) OR (wang yan))) OR (wang liang)) hua gene yang jin wong sau ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wan ((((((yan yan) OR (yang yang))) or (wang yan))) or (wang liang)) hua gene yang jin wong sau ;*".