Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
wang yong » wang yang, wang hyoung, wang yan
gene yang » gene bank
ka chuan » say chuan, hai chuan, ka chai
yang jie » yang jin, yang di, yang jui
jie song » jae song, jin song, kim song
song hai » hong hai, shang hai, dang hai
ka hua » ya hua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((yang yang) or (wang yong)) ((ka hua) OR (ka chuan)) gene yang jie song hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yang yang) OR (wang yong)) ((ka hua) OR (ka chuan)) gene yang jie song hai ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yang yang) or (wang yong)) ((ka hua) OR (ka chuan)) gene yang jie song hai ;".
• Adding a wildcard symbol may retrieve word variants: ((yang yang) or (wang yong)) ((ka hua) OR (ka chuan)) gene yang jie song hai ;*.