Perhaps you should try some spelling variations:
long thanh » luong thanh, long han, long trinh
dong ping » dong sin, dong bin, dong jung
hong than » hong tan, hong hai
welt han » welt hans, welt von, welt ein
dong di » dong sin
han thi » nhan thi, phan thi, ha thi
ya die » 2a die, ja die

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((dong di) or (dong ping)) ((ya die) or (aa die)) welt han thi ((hong than) OR (long thanh)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong di) OR (dong ping)) ((ya die) OR (aa die)) welt han thi ((hong than) OR (long thanh)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((dong di) or (dong ping)) ((ya die) or (aa die)) welt han thi ((hong than) OR (long thanh)) ;*".