Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung toan » truong toan, trung tuan, trung tran
toan khong » toan thong, toan khung, toan thuong
doi chieu » doc hieu, doi chi, ho chieu
cho thue » choi thuc, cuc thue, cho he
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) or (cho thue)) xanh - thanh trung toan khong ((cong dan) or (cong tan)) van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (cho thue)) xanh - thanh trung toan khong ((cong dan) OR (cong tan)) van ban.
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (cho thue)) xanh - thanh trung toan khong ((cong dan) or (cong tan)) van ban*.