Perhaps you should try some spelling variations:
thanh thong » thanh thuong, thanh hong, thanh thang
theo chiet » theo chieu, thep thiet
chiet tach » chieu sach
dung cong » dung trong
ban thanh » ban hanh, ban hang
thong su » thong tu, thong cua, thong qua
ban than » van thanh, ban hang, ban hanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chiet tach - thanh thong su dung cong ((ban than) or (ban thanh)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chiet tach - thanh thong su dung cong ((ban than) OR (ban thanh)) cau.
• Adding a wildcard symbol may retrieve word variants: theo chiet tach - thanh thong su dung cong ((ban than) or (ban thanh)) cau*.