Perhaps you should try some spelling variations:
seung yeon » jeong yeon, seung joon, seung won
juan wang » yuan wang, juan meng, juan rana
wang hair » dang hai, wang hui
hair rene » hai ren, hair one
rene sang » lee sang
sang minh » kang minah, anh minh, song min
jeong seo » jeong yeon, hong seo, jeong su

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

• Performing a fuzzy search may retrieve terms with similar spellings: (feng OR eng) juan wang hair rene sang minh ((jeong seo) or (seung yeon)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (feng OR eng) juan wang hair rene sang minh ((jeong seo) OR (seung yeon)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(feng OR eng) juan wang hair rene sang minh ((jeong seo) or (seung yeon)) ;*".