Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
nhan thong » nhan trong, nha thong, nhan khong
mot chieu » doi chieu, ho chieu
hang dong » hang nong, hang cong, hanh dong
thong tu » phong tuc, thong tin, thong ke
dong san » cong san, dong bang, dong von
san toan » van toan, dan toan, manh toan
toan cao » toan ban, toan tap
tu hang » thu hang, tu hanh, tu hung

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 - nhan thong tu hang dong san toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (theo chieu)) xanh - nhan thong tu hang dong san toan cao.
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) or (theo chieu)) xanh - nhan thong tu hang dong san toan cao*.