Perhaps you should try some spelling variations:
jeong hyeok » jeong dahyeon
minh jeong » min jeong, minh cong
gene bank » gene banks, one bank, genomen bank
tong hui » wang hui
don juan » von juan, san juan, de juan
lee sang » lee ann
wang a » wang _, fang a, lang a

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: "((tong hui) OR (don juan)) wang a ((gene bank) OR (lee sang)) minh jeong hyeok ;~".
• Adding a wildcard symbol may retrieve word variants: ((tong hui) OR (don juan)) wang a ((gene bank) OR (lee sang)) minh jeong hyeok ;*.