Perhaps you should try some spelling variations:
duong trong » dung trong
hanh trinh » canh tranh, hanh chinh
chieu xanh » chieu sach, chieu sang, chieu tinh
hien hanh » dieu hanh
hieu lang » chieu sang, hieu quang, nhieu tang
trinh cua » tinh cua, trinh luat, trinh quan
cua duong » cua dong, cua huong, qua duong
trong tac » trong cac, tuong tac, trong tan
tac toan » tap toan, tam toan, hach toan
toan cau » 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: ho ((((chieu xanh) or (hien hanh))) or (hieu lang)) - hanh trinh cua duong trong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((((chieu xanh) OR (hien hanh))) OR (hieu lang)) - hanh trinh cua duong trong tac toan cau.
• Adding a wildcard symbol may retrieve word variants: ho ((((chieu xanh) or (hien hanh))) or (hieu lang)) - hanh trinh cua duong trong tac toan cau*.