Perhaps you should try some spelling variations:
thanh tuong » thanh thuong, thanh huong, thanh cuong
hien nhanh » hien hanh, thien thanh, dien thanh
tien thanh » tien thinh, tran thanh, den thanh
thanh tung » thanh cong
trong dan » trong dang, trong san, trong tan
cua dung » cua dang, cua dong, qua dung
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien nhanh) or (tien thanh)) - ((thanh tuong) OR (thanh tung)) cua dung trong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien nhanh) OR (tien thanh)) - ((thanh tuong) OR (thanh tung)) cua dung trong dan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien nhanh) or (tien thanh)) - ((thanh tuong) OR (thanh tung)) cua dung trong dan toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien nhanh) or (tien thanh)) - ((thanh tuong) OR (thanh tung)) cua dung trong dan toan cao*.