Perhaps you should try some spelling variations:
sudan chen » sudan ch
juan meng » juan rene, jui meng, yuan ming
chen yong » chen rong, chen yang, zhen yong
dong nan » dong yang, dong sin, dong cao
dong bin » dong sin, dann bin
hua meng » chua beng, hua ren, jui meng
yong han » long han, yong phang, jeong han
dong di » dong sin

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((dong nan) or (((dong bin) OR (dong di)))) ya ((hua meng) or (juan meng)) sudan chen yong han ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong nan) OR (((dong bin) OR (dong di)))) ya ((hua meng) OR (juan meng)) sudan chen yong han ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((dong nan) or (((dong bin) OR (dong di)))) ya ((hua meng) or (juan meng)) sudan chen yong han ;*".