Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trinh » canh tranh, hanh chinh
doc chieu » doc hieu, doi chieu, toc thieu
trinh cua » tinh cua, trinh luat, trinh quan
cua nhung » va nhung
cong ban » cong bang, cong san, cong dan
cong tan » cong tac, cong san, cong thanh
toan cao » toan ban
toan tap » toan ban

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

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