Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
chieu sach » chinh sach, chiet tach, chieu sang
thang long » thanh cong
tang luan » dung luan
long lam » nong lam, lon lam, song lam
lam than » tam than, lam thay, am than
than ban » thanh ban, toan ban, than man
ban cua » ban quan

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 tinh) or (chieu sach)) - hanh ((tang luan) or (ban cua)) thang long lam than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu tinh) OR (chieu sach)) - hanh ((tang luan) OR (ban cua)) thang long lam than ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu tinh) or (chieu sach)) - hanh ((tang luan) or (ban cua)) thang long lam than ban*.