Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu
thong cong » trong cong, tong cong, thong thong
thi chieu » thi chien, thi hieu, thi hien
ho chieu » hoc thieu, doi chieu, mot chieu
anh bang » anh hoang, anh quang, tinh bang
va thong » va thuong, va phuong, he thong
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap
bang va » hang va, ban va, trang va

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 (thi chieu))) or (ho chieu)) tach - anh bang va thong cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((theo chieu) OR (thi chieu))) OR (ho chieu)) tach - anh bang va thong cong tac toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((theo chieu) OR (thi chieu))) or (ho chieu)) tach - anh bang va thong cong tac toan cau".
• Adding a wildcard symbol may retrieve word variants: ((((theo chieu) OR (thi chieu))) or (ho chieu)) tach - anh bang va thong cong tac toan cau*.