Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
nhanh hang » nhanh thang, nhanh lang, thanh hang
dung cong » dung trong
manh toan » thanh toan, anh tuan, tinh toan
dan toan » van toan, dan than, dien toan
va dung » van dung, va duong, vat dung

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 - nhanh hang va dung cong ((xuan toan) or (((dan toan) or (manh toan)))) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - nhanh hang va dung cong ((xuan toan) OR (((dan toan) OR (manh toan)))) cau.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - nhanh hang va dung cong ((xuan toan) or (((dan toan) or (manh toan)))) cau*.