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 tac, cong san, cong thanh
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)) 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)) toan ban.
• Adding a wildcard symbol may retrieve word variants: so thiet tach - canh tranh cua nhung ((truong thanh) or (cong tan)) toan ban*.