Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
duong cong » dung cong, luong cong, duong trong
doi chieu » doc hieu, doi chi, ho chieu
tranh cua » doanh cua, manh cua
cua duong » cua dong, cua huong, qua duong
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: ((theo chieu) or (doi chieu)) xanh - canh tranh cua duong cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (doi chieu)) xanh - canh tranh cua duong cong tac toan cao.
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (doi chieu)) xanh - canh tranh cua duong cong tac toan cao*.