Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu tach » chiet tach, chieu sach, chiu trach
vat dung » van dung, viet dung, mat duong
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap
anh ban » anh bang, anh bai, anh van
va dung » van dung, va duong, va ung

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 tach - anh ban ((va dung) OR (vat dung)) cong tac toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu tach - anh ban ((va dung) OR (vat dung)) cong tac toan cau".
• Adding a wildcard symbol may retrieve word variants: theo chieu tach - anh ban ((va dung) OR (vat dung)) cong tac toan cau*.