Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
theo chieu » theo tieu, ho chieu, thi chieu
cua thuong » cua truong, cua phuong, ca thuong
trinh cua » tinh cua, trinh luat, trinh quan
theo chu » cho chu, chao chu, theo yeu
cong dan » cong san, cong tan, huong dan
cong tac » cong ty
toan tap » toan 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 chu)) sach - hanh trinh cua thuong ((cong dan) OR (cong tac)) toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) OR (theo chu)) sach - hanh trinh cua thuong ((cong dan) or (cong tac)) toan tap~".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) OR (theo chu)) sach - hanh trinh cua thuong ((cong dan) or (cong tac)) toan tap*.