Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
hanh trinh » canh tranh, hanh chinh
trinh qua » trinh quan, trinh cua, trinh quang
dung cong » dung trong
qua dung » quang dung, su dung, qua song
cong dan » cong san, cong tan, huong dan
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

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

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