Perhaps you should try some spelling variations:
luan chinh » luan chi, hoan chinh, luat hinh
thue manh » thue thanh, thuc hanh, thuy anh
hanh dung » thanh dung, anh dung, hanh dong
chu manh » ho manh, chu han, chu van
cong anh » cong danh, hong anh, cong thanh
dong anh » hong anh, dong thanh, hoang anh
tuan cao » toan cao, juan cao, quang cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: cho ((thue manh) OR (chu manh)) - hanh dung luan chinh ((cong anh) or (dong anh)) tuan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cho ((thue manh) OR (chu manh)) - hanh dung luan chinh ((cong anh) OR (dong anh)) tuan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "cho ((thue manh) OR (chu manh)) - hanh dung luan chinh ((cong anh) or (dong anh)) tuan cao".
• Adding a wildcard symbol may retrieve word variants: cho ((thue manh) OR (chu manh)) - hanh dung luan chinh ((cong anh) or (dong anh)) tuan cao*.