Perhaps you should try some spelling variations:
danh bat » doanh bat, anh bai, dinh ba
danh sai » dung sai, danh dau, hanh san
tu sach » thu sach, su sach, te sach
thu nam » tu nam, thu nhap, thu nhat
cua tre » cua te, cuu tre, cua triet
hieu he » hieu ve, hiem he, hieu le
y sang » _ sang, duy sang
ma hoi » mai hoi, ma hoa, me hoi
he nam » ha nam, nghe nam

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y sang ((ma hoi) or (xa hoi)). hieu he nam thu nam ((danh sai) OR (danh bat)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y sang ((ma hoi) OR (xa hoi)). hieu he nam thu nam ((danh sai) OR (danh bat)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y sang ((ma hoi) or (xa hoi)). hieu he nam thu nam ((danh sai) OR (danh bat)) cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sach y sang ((ma hoi) or (xa hoi)). hieu he nam thu nam ((danh sai) OR (danh bat)) cua tre*.