Perhaps you should try some spelling variations:
huang yang » huang ying, huang chang, huang jing
yang yang » wang yan
gene wang » gene bank, wen wang
wang yang » wang yan, wang liang, wang yanling
hua gene » human gene, a gene, hua ren
hong shu » cong shu, tong shui, wong shiu
hong yu » wong yue

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

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