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
sang minh » kang minah, anh minh, tang min
jeong seo » hong seo
hai » hadi, hair, haji
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 hai rene sang minh ((jeong seo) or (jeong yeon)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong yuan dang hai rene sang minh ((jeong seo) OR (jeong yeon)) ;*.