Perhaps you should try some spelling variations:
hoc thieu » toc thieu, hoc hien
hanh tran » hanh trang, thanh tran, hanh tram
tran tuan » tran xuan, tran quang, tran thanh
tuan dang » tran dang, tuan bang, tuan dung
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: ((hoc thieu) or (cho thue)) xanh - hanh tran tuan dang ((cong dan) or (cong tan)) van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (cho thue)) xanh - hanh tran tuan dang ((cong dan) OR (cong tan)) van ban.
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (cho thue)) xanh - hanh tran tuan dang ((cong dan) or (cong tan)) van ban*.