Perhaps you should try some spelling variations:
thanh thuong » thanh huong, thanh chuong, thanh phuong
mai nhung » mai hung, ai nhung, ma nhung
ho chieu » theo chieu, hoc thieu, doi chieu
doc hieu » toc thieu, hoc thieu, hoc hien
cong ban » cong bang, cong tan, cong dan
cong san » cong tac
toan tap » toan ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (doc hieu)) sach - thanh thuong mai nhung ((cong ban) OR (cong san)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doc hieu)) sach - thanh thuong mai nhung ((cong ban) OR (cong san)) toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (doc hieu)) sach - thanh thuong mai nhung ((cong ban) OR (cong san)) toan tap".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doc hieu)) sach - thanh thuong mai nhung ((cong ban) OR (cong san)) toan tap*.