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

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 (dann bin)))) ya ((hua meng) or (juan meng)) sudan chen rong han ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong nan) OR (((dong bin) OR (dann bin)))) ya ((hua meng) OR (juan meng)) sudan chen rong han ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((dong nan) or (((dong bin) OR (dann bin)))) ya ((hua meng) or (juan meng)) sudan chen rong han ;*".