Perhaps you should try some spelling variations:
nhanh huong » nhanh chuong, thanh huong, nhanh hong
theo chieu » theo tieu, ho chieu, theo chu
mot chieu » doi chieu, ho chieu
huong cua » dung cua
bang cong » dang cong, bang song, hang cong
cua bang » chua bang, cua ban, cua dang
cong dan » cong san, cong tan, huong dan
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: ((mot chieu) or (theo chieu)) xanh - nhanh huong cua bang cong dan ((toan cao) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (theo chieu)) xanh - nhanh huong cua bang cong dan ((toan cao) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((mot chieu) or (theo chieu)) xanh - nhanh huong cua bang cong dan ((toan cao) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) or (theo chieu)) xanh - nhanh huong cua bang cong dan ((toan cao) OR (toan ban))*.