Perhaps you should try some spelling variations:
sang minh » kang minah, anh minh, song min
wang jing » wang ning, wang liang, wang yang
tang min » chang min, yang mind, tang li
meng tan » meng yuan, hong tan, meng xin
yang jin » yang jie, yang jun, ying jin
eang hay » dang hai, kang han
tan kai » tan kah, yuan kai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tang min) OR (sang minh)) meng tan kai ((yang jin) or (wang jing)) eang hay ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tang min) OR (sang minh)) meng tan kai ((yang jin) OR (wang jing)) eang hay ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tang min) OR (sang minh)) meng tan kai ((yang jin) or (wang jing)) eang hay ;*".