Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
manh trung » manh tung, thanh trung, manh hung
hoc chieu » hoc thieu, ho chieu, hoc hien
trung ha » trung hoc, trung tam, trung cap
cong ban » cong bang, cong san, cong dan
cong tan » cong tac, cong san, cong thanh
than cau » toan cau, phan cau, than cap
ha dung » hai dung, kha dung, nha dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu xanh - manh trung ha dung ((cong ban) or (cong tan)) than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - manh trung ha dung ((cong ban) OR (cong tan)) than cau.
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - manh trung ha dung ((cong ban) or (cong tan)) than cau*.