Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh tranh » canh tranh, hanh trang, lanh tranh
hanh trinh » canh tranh, hanh chinh
dung cong » dung trong
cong bang » cuong bang, dong bang, hong bang
ho chieu » theo chieu, hoc thieu, doi chieu
cua dung » cua dang, cua dong, qua dung
hang tai » dung tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu xanh - ((hanh tranh) or (hanh trinh)) cua dung cong bang ((hang tai) OR (hang va))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - ((hanh tranh) OR (hanh trinh)) cua dung cong bang ((hang tai) OR (hang va)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - ((hanh tranh) or (hanh trinh)) cua dung cong bang ((hang tai) OR (hang va))".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - ((hanh tranh) or (hanh trinh)) cua dung cong bang ((hang tai) OR (hang va))*.