Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
thanh toan » thanh hoa, thanh san, tinh toan
tong cong » trong cong, cong cong, dung cong
van phong » van dong, hai phong
van phan » van thanh, luan phan, van ban
toan le » tuan le, toan ly, toan ke
le tong » le trong, le hong, le tang

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu xanh) OR (chieu sang)) - thanh toan le tong cong ((van phan) or (van phong)) lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (chieu sang)) - thanh toan le tong cong ((van phan) OR (van phong)) lap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) OR (chieu sang)) - thanh toan le tong cong ((van phan) or (van phong)) lap".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) OR (chieu sang)) - thanh toan le tong cong ((van phan) or (van phong)) lap*.