Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
theo chieu » theo chu, thi chieu
hanh tang » hanh trang, anh tang, hanh mang
cua thong » cua thuong, cua khong, cua tong
ho chieu » hoc thieu, doi chieu, mot chieu
tang cua » mang cua, hang cua, tang luan
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 (ho chieu))) or (theo tieu)) sach - hanh tang cua thong cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((theo chieu) OR (ho chieu))) OR (theo tieu)) sach - hanh tang cua thong cong tac toan cau.
• Adding a wildcard symbol may retrieve word variants: ((((theo chieu) or (ho chieu))) or (theo tieu)) sach - hanh tang cua thong cong tac toan cau*.