Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
thai dong » thai cong, thai long, thai muong
ho thiet » hoc thiet, hoa thiet, hoc thieu
so thiet » soc thiet, hoc thiet, hoa thiet
thi dung » thi huong, thi nhung, thi cong
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 thiet) or (so thiet)) tach - hanh tranh ((thai dong) or (thi dung)) cong tac toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho thiet) OR (so thiet)) tach - hanh tranh ((thai dong) OR (thi dung)) cong tac toan ban.
• Adding a wildcard symbol may retrieve word variants: ((ho thiet) or (so thiet)) tach - hanh tranh ((thai dong) or (thi dung)) cong tac toan ban*.