Perhaps you should try some spelling variations:
trinh chuan » trinh han, trinh quan, trinh luan
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trinh » canh tranh, hanh chinh
chuan bang » chua bang, chuan trang, can bang
bang cong » dang cong, bang song, hang cong
cong san » cong tac
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 - hanh trinh chuan bang cong san ((toan tap) OR (toan ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - hanh trinh chuan bang cong san ((toan tap) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - hanh trinh chuan bang cong san ((toan tap) OR (toan ban))*.