Perhaps you should try some spelling variations:
jeong hyeok » jeong dahyeon
seung yeon » seung joon, seung won, seung youn
jeong yeon » jeang yean, jeong dahyeon
juan wang » yuan wang, juan meng, juan rana
wang hair » dang hai, wang hui
hair gene » hair one
gene anh » gene bank, gene one
feng » eng, fang

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: feng juan wang hair gene anh minh ((jeong hyeok) OR (((seung yeon) OR (jeong yeon)))) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "feng juan wang hair gene anh minh ((jeong hyeok) or (((seung yeon) OR (jeong yeon)))) ;~".
• Adding a wildcard symbol may retrieve word variants: feng juan wang hair gene anh minh ((jeong hyeok) or (((seung yeon) OR (jeong yeon)))) ;*.