Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
canh manh » lanh manh, cach mang, van manh
dung cong » dung trong
theo yeu » theo tieu, thiet yeu, theo chu
cua dung » cua dang, cua dong, qua dung
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » 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: ((theo chieu) or (theo yeu)) sach - ((canh manh) or (canh tranh)) cua dung cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (theo yeu)) sach - ((canh manh) OR (canh tranh)) cua dung cong tac toan cau.
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (theo yeu)) sach - ((canh manh) or (canh tranh)) cua dung cong tac toan cau*.