Perhaps you should try some spelling variations:
jeong yeon » jeong hyeok, seung yeon, jeong dahyeon
dong yuan » dong yang, fang yuan, meng yuan
yuan dang » yuan wang, yuan ting
dang hair » dang hai
sang minh » kang minah, anh minh, tang min
jeong seo » hong seo
rene » irene, rent, gene

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

• Performing a fuzzy search may retrieve terms with similar spellings: dong yuan dang hair rene sang minh ((jeong seo) OR (jeong yeon)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "dong yuan dang hair rene sang minh ((jeong seo) OR (jeong yeon)) ;*".