Perhaps you should try some spelling variations:
sang minh » kang minah, anh minh, song min
yang jung » yang jing, yang guang, yang judy
dong nan » dong yang, dong sin, dong bin
jui chen » yi chen
yang jun » yang jui, pang jun, yang jin
yang xi » yang di, yang yi, yang jui
nan 4 » ban 4, man 4, nan 3
4 jui » 4 juli, 4 juni, 4 gui

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 4 jui chen ((((sang minh) or (yang jung))) or (((yang xi) or (yang jun)))) cong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong nan 4 jui chen ((((sang minh) OR (yang jung))) OR (((yang xi) OR (yang jun)))) cong shu ;.
• Adding a wildcard symbol may retrieve word variants: dong nan 4 jui chen ((((sang minh) or (yang jung))) or (((yang xi) or (yang jun)))) cong shu ;*.