Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
trinh cua » tinh cua, trinh luat, trinh quan
bang cong » dang cong, bang song, hang cong
ho chieu » hoc thieu, doi chieu, mot chieu
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
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: ((ho chieu) or (theo chieu)) xanh - hanh ((trinh cua) or (tinh chat)) bang cong tac toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chieu)) xanh - hanh ((trinh cua) OR (tinh chat)) bang cong tac toan ban.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (theo chieu)) xanh - hanh ((trinh cua) or (tinh chat)) bang cong tac toan ban*.