Perhaps you should try some spelling variations:
yang yaong » wang yang, wang yong, yang yao
does human » des human, das human, does humanity
human gene » human genome, human gender, human bone
yang yang » wang yang, wang yan
gene yang » gene bank
jin keong » kin keong, jin kang, jin kyung
keong ghi » hong ghi
yang jin » yang jie, yang jun, ying jin

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

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