Perhaps you should try some spelling variations:
yang guang » yang yang, yang liang
gene bank » gene banks, one bank, genomen bank
zhong zhi » zhang zhi, hong ghi, zhong tai
yan guan » gan guan, yan yuan, yihan guan
hua gene » human gene, a gene, hua ren
bank di » bank die, bank do, bank adb
hong yu » wong yue
wang » wing, wan, lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((yan guan) OR (yang guang)) hua gene bank di ((zhong zhi) or (hong yu)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yan guan) OR (yang guang)) hua gene bank di ((zhong zhi) OR (hong yu)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yan guan) OR (yang guang)) hua gene bank di ((zhong zhi) or (hong yu)) ;".
• Adding a wildcard symbol may retrieve word variants: wang ((yan guan) OR (yang guang)) hua gene bank di ((zhong zhi) or (hong yu)) ;*.