Perhaps you should try some spelling variations:
quang trong » quang truong, quang trung, quan trong
chieu sang » chieu sach, hieu lang, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
thanh tran » thanh trang, thanh toan, thanh tra
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 xanh)) - thanh tran quang trong cong trinh man tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sang) OR (chieu xanh)) - thanh tran quang trong cong trinh man tap.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sang) or (chieu xanh)) - thanh tran quang trong cong trinh man tap*.