Perhaps you should try some spelling variations:
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
luan trong » quan trong, luat trong, luan tuong
hanh tang » hanh trang, anh tang, hanh mang
tang luan » dung luan
cong tac » cong ty
da tap » va tap, ba tap, da tac

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 sang) or (chieu sach)) - hanh tang luan trong cong tac da tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sang) OR (chieu sach)) - hanh tang luan trong cong tac da tap.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) or (chieu sach)) - hanh tang luan trong cong tac da tap*.