Perhaps you should try some spelling variations:
truong thanh » truong trung, truong thpt, truong chung
thiet tach » chiet tach, thien hach, thuat tach
tranh cua » doanh cua, manh cua
cua nhung » va nhung
so thiet » soc thiet, hoc thiet, hoa thiet
cong tan » cong san, cong thanh, cong ty
cong tac » cong ty
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: so thiet tach - canh tranh cua nhung ((truong thanh) or (((cong tan) OR (cong tac)))) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so thiet tach - canh tranh cua nhung ((truong thanh) OR (((cong tan) OR (cong tac)))) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so thiet tach - canh tranh cua nhung ((truong thanh) or (((cong tan) OR (cong tac)))) toan ban".
• Adding a wildcard symbol may retrieve word variants: so thiet tach - canh tranh cua nhung ((truong thanh) or (((cong tan) OR (cong tac)))) toan ban*.