Perhaps you should try some spelling variations:
wang yong » wang yang, wang hyoung, wang yan
yong yang » yang yang, dong yang, ying yang
gene sang » gene bank
jeong ghi » jeong mi
yang hua » wang hua, yang hui, ying hua
lee sang » lee ann
hong ghi » zhong zhi, hong g, hong hai

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: wang yong yang hua ((gene sang) OR (lee sang)) min ((jeong ghi) OR (hong ghi)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yong yang hua ((gene sang) OR (lee sang)) min ((jeong ghi) or (hong ghi)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang yong yang hua ((gene sang) OR (lee sang)) min ((jeong ghi) or (hong ghi)) ;*.