Perhaps you should try some spelling variations:
chiet tach » chieu sach
ho chiet » ho chieu, ho thiet, hoc thiet
vat dung » van dung, viet dung, mat duong
cong tan » cong tac, cong san, cong thanh
tan than » tan thanh, tan tran, ban than
than man » than ma, thanh san, tran manh
va dung » van dung, va duong, va ung

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chiet tach - canh tranh ((va dung) OR (vat dung)) cong tan than man~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chiet tach - canh tranh ((va dung) OR (vat dung)) cong tan than man".
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - canh tranh ((va dung) OR (vat dung)) cong tan than man*.