Perhaps you should try some spelling variations:
thanh thuong » thanh huong, thanh chuong, thanh phuong
thiet tach » chiet tach, thien hach, thuat tach
hoc thiet » hoc thieu, hoc thuyet, hoc hien
thuong va » truong va, thong va, thuong mai
dung cong » dung trong
cong san » cong tac
than cua » nhan cua, thai cua, ban cua
khan cap » khan ap, than cap, khoan cam
va dung » van dung, va duong, vat dung

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thiet tach - thanh thuong va dung cong san ((than cua) or (khan cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thiet tach - thanh thuong va dung cong san ((than cua) OR (khan cap)).
• Adding a wildcard symbol may retrieve word variants: hoc thiet tach - thanh thuong va dung cong san ((than cua) or (khan cap))*.