Perhaps you should try some spelling variations:
sach thu » sach thue, sach thieu, sach tham
lang van » dang van, tang van, hoang van
sach bai » sach dao, cac bai, sach xa
hanh di » hanh vi, hanh de, hang di
sach va » sach xa, sach ha, sach dao
hieu vi » hieu voi, hieu va, hieu ve
sach ty » sach y, sach tu, xach tay
van hoi » van hoa, van hoc, van hoe
cua tre » cua te, cuu tre, cua triet
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach ty) or (sach thu)) lang van hoi. hieu vi pham ((sach va) or (sach bai)) hanh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ty) OR (sach thu)) lang van hoi. hieu vi pham ((sach va) OR (sach bai)) hanh di cua tre.
• Adding a wildcard symbol may retrieve word variants: su ((sach ty) or (sach thu)) lang van hoi. hieu vi pham ((sach va) or (sach bai)) hanh di cua tre*.