Perhaps you should try some spelling variations:
mot chieu » doi chieu
thi chieu » thi chien, thi hieu, theo chieu
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
cong cua » cong cu, dong cua, huong cua
cua dung » cua dang, cua dong, qua dung
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
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: ((((ho chieu) or (mot chieu))) or (thi chieu)) xanh - thanh cong cua dung cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((ho chieu) OR (mot chieu))) OR (thi chieu)) xanh - thanh cong cua dung cong tac toan cao.
• Adding a wildcard symbol may retrieve word variants: ((((ho chieu) or (mot chieu))) or (thi chieu)) xanh - thanh cong cua dung cong tac toan cao*.