Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, ho chieu
hanh tang » hanh trang, anh tang, hanh mang
trong dan » trong dang, trong san, trong tan
quy dung » duy dung, qua dung, quyet dung
dan toan » van toan, dan than, manh 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: doi chieu xanh - ((hanh tang) or (hanh trinh)) quy dung trong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - ((hanh tang) OR (hanh trinh)) quy dung trong dan toan cau*.