Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, minh trang
hanh trinh » canh tranh, hanh chinh
duong cong » dung cong, luong cong, duong trong
tieu xanh » tieu danh, chieu xanh, dieu hanh
va duong » van duong, va tuong, va huong
cong tac » cong ty
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: theo tieu xanh - ((hanh trang) or (hanh trinh)) va duong cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - ((hanh trang) OR (hanh trinh)) va duong cong tac toan cau*.