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