Perhaps you should try some spelling variations:
guifang yang » cuifen yang
huang yang » huang ying, huang chang, wang yang
wang quang » wang luhang, wang liang, wang yang
quang hong » quang cuong, wang hong, zhang hong
gene wang » gene bank, wen wang
hua gene » human gene, a gene, hua ren
hong shu » cong shu, tong shui, wong shiu

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 (guifang yang)) hua gene wang quang hong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong ((huang yang) OR (guifang yang)) hua gene wang quang hong shu ;*.