Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
bang thanh » ban thanh, dang thanh, tang thanh
thanh phan » thanh pho, thanh san, thanh toan
hieu xanh » chieu xanh, hieu manh, hieu nganh
manh tran » manh toan, manh tuan, canh tranh
tran tuan » tran xuan, tran quang, tran thanh
tuan dang » tran dang, tuan bang, tuan dung
dang cong » dung cong
cong bang » cuong bang, dong bang, hong bang

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 tinh)) - manh tran tuan dang cong bang thanh phan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu xanh) OR (chieu tinh)) - manh tran tuan dang cong bang thanh phan*.