Perhaps you should try some spelling variations:
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
thanh tran » thanh trang, thanh toan, thanh tra
tuan trong » thuan trong, quan trong, tran trong
tran tuan » tran xuan, tran quang, tran thanh
trinh man » trinh mang, trinh han, trinh van
man tap » han tap, toan tap, phan tap

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 sang) or (chieu sach)) - thanh tran tuan trong cong trinh man tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sang) OR (chieu sach)) - thanh tran tuan trong cong trinh man tap.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sang) or (chieu sach)) - thanh tran tuan trong cong trinh man tap*.