Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
hanh dung » thanh dung, anh dung, hanh dong
cong cong » cong dong, trong cong, dung cong
chao chu » cho chu, cao cho, chao xu
dung cua » dung luan, dung cho
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap
cua chu » sua chua

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 (((chao chu) OR (cua chu)))) sach - hanh dung cua cong cong tac toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) or (((chao chu) OR (cua chu)))) sach - hanh dung cua cong cong tac toan cau~".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (((chao chu) OR (cua chu)))) sach - hanh dung cua cong cong tac toan cau*.