Perhaps you should try some spelling variations:
yang yaong » wang yang, yang yao, ying yang
does human » des human, das human, does humanity
human gene » human genome, human gender, human bone
wang yong » wang yang, wang hyoung, wang yan
yang yang » wang yang, wang yan
gene yang » gene bank
yang jie » yang jin, yang di, yang jui
jie kang » jin kang, jie zhang, wie kann
kang ghi » hong ghi

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 yaong) OR (wang yong))) OR (yang yang)) does human gene yang jie kang ghi ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((yang yaong) OR (wang yong))) or (yang yang)) does human gene yang jie kang ghi ;~".
• Adding a wildcard symbol may retrieve word variants: ((((yang yaong) OR (wang yong))) or (yang yang)) does human gene yang jie kang ghi ;*.