Perhaps you should try some spelling variations:
yang guang » yang yang, yang liang
chong yun » chang yun, chen yun, chong en
young eun » young men
yan guan » gan guan, yan yuan, yihan guan
iii gene » iii rene, iii gender, iii genome
gene anh » gene bank, gene one
anh jin » anh minh, yang jin
hong yu » wong yue

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

• If you are trying to use Boolean operators, they must be ALL CAPS: yang ((yang guang) OR (yan guan)) iii gene anh jin ((((chong yun) OR (hong yu))) OR (young eun)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "yang ((yang guang) OR (yan guan)) iii gene anh jin ((((chong yun) or (hong yu))) or (young eun)) ;~".
• Adding a wildcard symbol may retrieve word variants: yang ((yang guang) OR (yan guan)) iii gene anh jin ((((chong yun) or (hong yu))) or (young eun)) ;*.