Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trinh » hanh chinh
van cong » van dong, van phong, phan cong
cong san » cong tac
toan cao » toan tap
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: theo chieu xanh - ((canh tranh) or (hanh trinh)) luan van cong san ((toan cao) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - ((canh tranh) OR (hanh trinh)) luan van cong san ((toan cao) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - ((canh tranh) or (hanh trinh)) luan van cong san ((toan cao) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - ((canh tranh) or (hanh trinh)) luan van cong san ((toan cao) OR (toan ban))*.