Perhaps you should try some spelling variations:
thanh toan » thanh hoa, thanh san, tinh toan
tuong manh » luong manh, tung manh, tuong lanh
duong manh » duong van
hieu xanh » chieu xanh, hieu manh, hieu nganh
thanh van » thanh san, thanh phan, thanh nhan
doc hieu » toc thieu, hoc thieu, hoc hien
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu xanh - nhanh ((thanh van) or (thanh toan)) nhung ((tuong manh) OR (duong manh)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - nhanh ((thanh van) OR (thanh toan)) nhung ((tuong manh) OR (duong manh)) toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu xanh - nhanh ((thanh van) or (thanh toan)) nhung ((tuong manh) OR (duong manh)) toan tap".
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - nhanh ((thanh van) or (thanh toan)) nhung ((tuong manh) OR (duong manh)) toan tap*.