Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, truong thanh
nhung cong » dung cong, thong cong, hang cong
tran tuan » tran xuan, tran quang, tran thanh
chao chu » cho chu, cua chu, cao cho
chu sach » cau sach, thu sach, chieu 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: chao chu sach - thanh ((trung tuan) or (tran tuan)) nhung cong ban than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: chao chu sach - thanh ((trung tuan) OR (tran tuan)) nhung cong ban than cau.
• Adding a wildcard symbol may retrieve word variants: chao chu sach - thanh ((trung tuan) or (tran tuan)) nhung cong ban than cau*.