Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
bang nhanh » bang nhan, bang thanh, ban hanh
hieu xanh » hieu manh, hieu nganh, dieu hanh
manh tran » manh toan, manh tuan, canh tranh
tran tuan » tran xuan, tran quang, tran thanh
tuan bang » tuan dang, tuan hoang, thuat bang
bang cong » dang cong, bang song, hang cong
cong bang » cuong bang, dong bang, hong bang
nhanh ha » thanh hoa, thanh hai, khanh hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((hieu xanh) or (chieu xanh)) - manh tran tuan bang cong bang nhanh ha~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu xanh) OR (chieu xanh)) - manh tran tuan bang cong bang nhanh ha*.