Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
cang thang » cong thanh, dang thanh
thanh toan » thanh hoa, thanh san, tinh toan
manh toan » anh tuan, tinh toan
vat dung » van dung, viet dung, mat duong
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 sach - cang thang ((va dung) OR (vat dung)) cong ((manh toan) or (thanh toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - cang thang ((va dung) OR (vat dung)) cong ((manh toan) OR (thanh toan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - cang thang ((va dung) OR (vat dung)) cong ((manh toan) or (thanh toan)) cau".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - cang thang ((va dung) OR (vat dung)) cong ((manh toan) or (thanh toan)) cau*.