Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung tuan » trung thanh, trung tam, tran tuan
tuan thong » toan thong, tran thong, tuan phong
hoc thieu » toc thieu, hoc hien
hoc dieu » hoc hien
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc dieu) or (hoc thieu)) sach - thanh trung tuan thong ((cong tan) or (cong san)) van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc dieu) OR (hoc thieu)) sach - thanh trung tuan thong ((cong tan) OR (cong san)) van ban.
• Adding a wildcard symbol may retrieve word variants: ((hoc dieu) or (hoc thieu)) sach - thanh trung tuan thong ((cong tan) or (cong san)) van ban*.