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
manh toan » thanh toan, anh tuan, tinh toan
van toan » van tuan, van tan, van thanh
vi dang » va dang, vi dong, vi dung
vu dang » su dang, vu quang, cua dang

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 ((vi dang) OR (vu dang)) cong ((van toan) or (manh toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - canh trinh ((vi dang) OR (vu dang)) cong ((van toan) OR (manh toan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - canh trinh ((vi dang) OR (vu dang)) cong ((van toan) or (manh toan)) cau".
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - canh trinh ((vi dang) OR (vu dang)) cong ((van toan) or (manh toan)) cau*.