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
cong thong » cong thuong, cong trong, dong thong
trinh cua » tinh cua, trinh luat, trinh quan
quan toan » quang toan, quan doan, xuan toan
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: theo ((chieu xanh) or (chieu sang)) - hanh trinh cua cong thong quan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu sang)) - hanh trinh cua cong thong quan toan cao*.