Perhaps you should try some spelling variations:
theo chieu » ho chieu, theo chu, thi chieu
hoc thieu » toc thieu, hoc hien
canh manh » lanh manh, canh tranh, cach mang
dang cong » dung cong
manh cua » doanh cua, ban cua
cua dang » cua cong, cua ban
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan ban » van ban

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: ((((theo chieu) OR (theo tieu))) OR (hoc thieu)) xanh - canh manh cua dang cong tac toan ban~.
• Adding a wildcard symbol may retrieve word variants: ((((theo chieu) or (theo tieu))) or (hoc thieu)) xanh - canh manh cua dang cong tac toan ban*.