Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
trong manh » trong minh, trong anh, trong mach
hoc chieu » hoc thieu, ho chieu, hoc hien
manh toan » thanh toan, anh tuan, tinh toan
manh cua » doanh cua
toan ban » van ban
ban cua » ban quan

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 - lan ((manh cua) OR (ban cua)) dung trong manh toan ban~.
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - lan ((manh cua) or (ban cua)) dung trong manh toan ban*.