Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh tranh » canh tranh, hanh trang, lanh tranh
hanh trinh » canh tranh, hanh chinh
doi chieu » doc hieu, doi chi, ho chieu
dung cong » dung trong
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan ban » van ban

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 tranh) or (hanh trinh)) xay dung cong san toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - ((hanh tranh) OR (hanh trinh)) xay dung cong san toan ban.
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - ((hanh tranh) or (hanh trinh)) xay dung cong san toan ban*.