Perhaps you should try some spelling variations:
thiet tach » chiet tach, thien hach, thuat tach
nhung cong » dung cong, thong cong, hang cong
thang cua » thong cua, hang cua, thang mua
so thiet » soc thiet, hoc thiet, hoa thiet
than cua » nhan cua, thai cua, ban cua
tang cua » mang cua, hang cua, tang luan
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van 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: so thiet tach - hanh ((((thang cua) or (than cua))) or (tang cua)) nhung cong tan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so thiet tach - hanh ((((thang cua) OR (than cua))) OR (tang cua)) nhung cong tan toan ban.
• Adding a wildcard symbol may retrieve word variants: so thiet tach - hanh ((((thang cua) or (than cua))) or (tang cua)) nhung cong tan toan ban*.