Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hoc chieu » hoc thieu, ho chieu, hoc hien
xanh hanh » danh thanh, ban hanh, van hanh
hanh hanh » hanh han, nhanh thanh, thanh thanh
hang cong » hang nong, bang cong, thanh cong
dang cong » dung cong
manh toan » thanh toan, anh tuan, tinh toan
toan cao » toan ban, toan tap

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - ((hanh hanh) OR (xanh hanh)) va ((hang cong) OR (dang cong)) manh toan cao~.
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - ((hanh hanh) or (xanh hanh)) va ((hang cong) or (dang cong)) manh toan cao*.