Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
canh trang » canh tranh, hanh trang, banh trang
nhung cong » dung cong, thong cong, hang cong
ho chieu » hoc thieu, doi chieu, mot chieu
trang va » tran van, hang va
dan toan » van toan, dan than, manh toan
ban than » ban thanh, van thanh, ban hang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) OR (ho chieu)) sach - canh trang va nhung cong ((dan toan) or (ban than)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (ho chieu)) sach - canh trang va nhung cong ((dan toan) OR (ban than)) ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) OR (ho chieu)) sach - canh trang va nhung cong ((dan toan) or (ban than)) ban".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) OR (ho chieu)) sach - canh trang va nhung cong ((dan toan) or (ban than)) ban*.