Perhaps you should try some spelling variations:
yong yang » yang yang, dong yang, kyoung yang
ying yang » yang yang, yin yang, ying chang
gene wang » gene bank, wen wang
wang ning » wang jing, wang liang, wang yang
zhong zhi » zhang zhi, hong ghi, zhong tai
dang hadi » dang hai
hua gene » human gene, a gene, hua ren

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

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