Perhaps you should try some spelling variations:
doc chieu » doc hieu, toc thieu, hoc thieu
doi chieu » doc hieu, doi chi, ho chieu
banh hang » ban hang, banh rang, tranh hang
dung cong » dung trong
cong ban » cong bang, cong san, cong tan
than cau » toan cau, than cap, thanh chau
phan cau » phan dau, phan cac, phan tu
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: ((doc chieu) or (doi chieu)) sach - banh hang va dung cong ban ((than cau) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc chieu) OR (doi chieu)) sach - banh hang va dung cong ban ((than cau) OR (phan cau)).
• Adding a wildcard symbol may retrieve word variants: ((doc chieu) or (doi chieu)) sach - banh hang va dung cong ban ((than cau) or (phan cau))*.