Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh tran » thanh trang, thanh toan, thanh tra
tran thong » toan thong, tran hong, tran trong
thong cong » trong cong, tong cong, thong thong
hieu lang » chieu sang, hieu quang, nhieu tang
tran tran » tan tran, tran tuan, tran tan
trinh san » trinh han, trinh quan, trinh toan
san tap » han tap, man tap, san tay

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu lang) or (chieu xanh)) - thanh tran tran thong cong trinh san tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu lang) OR (chieu xanh)) - thanh tran tran thong cong trinh san tap.
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu lang) or (chieu xanh)) - thanh tran tran thong cong trinh san tap*.