Perhaps you should try some spelling variations:
chieu hanh » dieu hanh, hien hanh, chi hanh
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh mang » nhanh mang, hanh trang, nhanh lang
dung cong » dung trong
cong san » cong tac
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap
mang va » mang vua, hang va, bang va
va dung » van dung, va duong, vat dung

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 hanh) OR (chieu xanh)) - hanh mang va dung cong san ((toan cau) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu hanh) OR (chieu xanh)) - hanh mang va dung cong san ((toan cau) OR (toan cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu hanh) OR (chieu xanh)) - hanh mang va dung cong san ((toan cau) or (toan cao))".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu hanh) OR (chieu xanh)) - hanh mang va dung cong san ((toan cau) or (toan cao))*.