Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
chieu xanh » chieu sach, chieu sang, chieu tinh
hieu lang » chieu sang, hieu quang, nhieu tang
dung cong » dung trong
trinh va » trinh van, trinh vat, trinh ve
cong dan » cong san, cong tan, huong dan
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap
va dung » van dung, va duong, vat dung

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

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