Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
canh trinh » canh tranh, hanh trinh, canh tinh
trinh hoa » trinh do, trinh han
hoa bang » hoa lang, hoa nang, hoa vang
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
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: theo chieu xanh - canh trinh hoa bang ((cong dan) OR (cong san)) toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - canh trinh hoa bang ((cong dan) OR (cong san)) toan cau".
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - canh trinh hoa bang ((cong dan) OR (cong san)) toan cau*.