Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu sach » chieu sach, thien hach, hieu cach
hoc thieu » toc thieu, hoc hien
tam nhung » tham nhung, cam nhung, lam nhung
nam nhung » cam nhung, tham nhung, va nhung
dan than » dan chan, van than, dan 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: hoc thieu sach - thanh trung ((tam nhung) OR (nam nhung)) tuong ((dan than) or (ban than)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - thanh trung ((tam nhung) OR (nam nhung)) tuong ((dan than) OR (ban than)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sach - thanh trung ((tam nhung) OR (nam nhung)) tuong ((dan than) or (ban than)) cau".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - thanh trung ((tam nhung) OR (nam nhung)) tuong ((dan than) or (ban than)) cau*.