Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trinh » canh tranh, hanh chinh
hoc chieu » hoc thieu, ho chieu, hoc hien
trinh cua » tinh cua, trinh luat, trinh quan
dung cong » dung trong
quang ban » quang binh, quang tuan, quang tran
quan ban » qua ban, quan van, luan ban

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 trinh cua ((dang cong) OR (dung cong)) van ((quan ban) or (quang ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - hanh trinh cua ((dang cong) OR (dung cong)) van ((quan ban) OR (quang ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu xanh - hanh trinh cua ((dang cong) OR (dung cong)) van ((quan ban) or (quang ban))".
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - hanh trinh cua ((dang cong) OR (dung cong)) van ((quan ban) or (quang ban))*.