Perhaps you should try some spelling variations:
jeong hyeok » jeong dahyeon
wang yuhan » wang luhang, wang yan, wang yidan
yuhan wang » yuan wang, yan wang, yuhuan huang
jeong yeon » seung yeon, jeong dahyeon
sang minh » kang minah, anh minh, song min
wang hai » dang hai, wang hui, shang hai
ren sang » lee sang, le sang, ren weng

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yuhan wang hai ren sang minh ((jeong hyeok) or (((jeang yean) OR (jeong yeon)))) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yuhan wang hai ren sang minh ((jeong hyeok) OR (((jeang yean) OR (jeong yeon)))) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yuhan wang hai ren sang minh ((jeong hyeok) or (((jeang yean) OR (jeong yeon)))) ;*".