Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
luan nang » luan van, van nang, luan san
dan thanh » dang thanh, danh thanh, ban thanh
thanh mau » hanh mau, thanh san, thanh hai
song dan » song danh, song van, cong dan

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 (chieu sach)) - sach dung luan nang song dan thanh mau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu sach)) - sach dung luan nang song dan thanh mau.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (chieu sach)) - sach dung luan nang song dan thanh mau*.