Perhaps you should try some spelling variations:
jeong yeon » jeong hyeok, jeang yean, jeong dahyeon
seung yeon » seung joon, seung won, seung youn
juan dang » juan danza, juan meng, juan rana
sang minh » kang minah, anh minh, song min
don juan » von juan, san juan, de juan
sang min » song min, tang min, chang min

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: don juan dang hai (rene OR gene) ((sang min) OR (sang minh)) ((jeong yeon) OR (seung yeon)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "don juan dang hai (rene or gene) ((sang min) OR (sang minh)) ((jeong yeon) or (seung yeon)) ;~".
• Adding a wildcard symbol may retrieve word variants: don juan dang hai (rene or gene) ((sang min) OR (sang minh)) ((jeong yeon) or (seung yeon)) ;*.