Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, ho chieu
minh tuan » anh tuan
cua dung » cua dang, cua dong, qua dung
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu xanh - ((minh tuan) or (hanh trinh)) cua dung ((cong dan) or (cong san)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - ((minh tuan) OR (hanh trinh)) cua dung ((cong dan) OR (cong san)) toan cao.
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - ((minh tuan) or (hanh trinh)) cua dung ((cong dan) or (cong san)) toan cao*.