Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
hoc thieu » toc thieu, hoc hien
anh tang » anh bang, anh dang, anh sang
anh nang » ganh nang, anh bang, anh dang
van than » van thanh, van thang, van tuan
ban than » ban thanh, van thanh, ban hang
cua han » cua hang, cua nhan, cua phan

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 - ((anh tang) or (anh nang)) cua han tong ((van than) or (ban than)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - ((anh tang) OR (anh nang)) cua han tong ((van than) OR (ban than)) ban.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - ((anh tang) or (anh nang)) cua han tong ((van than) or (ban than)) ban*.