Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
tranh tuan » tran tuan, tranh luan, thanh tuan
hoc chieu » hoc thieu, ho chieu, hoc hien
nhung don » nhung van, nhung bo
hang cong » dang cong, hang nong, bang cong
toan cao » toan tap
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu sach - canh tranh tuan ((nhung don) or (hang cong)) san ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - canh tranh tuan ((nhung don) OR (hang cong)) san ((toan cao) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - canh tranh tuan ((nhung don) or (hang cong)) san ((toan cao) or (toan ban))*.