Perhaps you should try some spelling variations:
thanh tran » thanh trang, thanh toan, thanh tra
tran tuan » tran xuan, tran quang, tran thanh
tuan dung » tuan duong, tran dung, tan dung
dung cong » dung trong
chu sach » cau sach, thu sach, chieu sach
cao sach » co sach, ao sach, cau sach
cong ban » cong bang, cong san, cong tan
ban than » ban thanh, van thanh, ban hang
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chu sach) or (cao sach)) - thanh tran tuan dung cong ban than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu sach) OR (cao sach)) - thanh tran tuan dung cong ban than cau.
• Adding a wildcard symbol may retrieve word variants: theo ((chu sach) or (cao sach)) - thanh tran tuan dung cong ban than cau*.