Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trang » thanh trung, canh tranh, hanh trinh
hoc chieu » hoc thieu, ho chieu, hoc hien
cong ban » cong bang, cong san, cong tan
ban than » ban thanh, van thanh, ban hang
than ban » thanh ban, toan ban, than man

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 - hanh trang ((cua ban) or (cua cong)) cong ban than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - hanh trang ((cua ban) OR (cua cong)) cong ban than ban.
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - hanh trang ((cua ban) or (cua cong)) cong ban than ban*.