Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
tang luan » dung luan
hieu van » hieu va, thien van, lieu va
anh tang » anh bang, anh dang, anh nang
van cong » van dong, van phong, phan cong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
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: theo ((chieu xanh) or (hieu van)) - anh tang luan van cong dan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (hieu van)) - anh tang luan van cong dan toan tap.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (hieu van)) - anh tang luan van cong dan toan tap*.