Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
hanh lai » hanh lam, hanh tai, thanh lap
te sach » toc sach
lai cua » dai cua, hai cua, lai chau
xa hanh » xa thanh, xa khanh, va hanh
dao duc » giao duc, tao duoc
hieu ca » hieu cac, hieu cua, hieu va
tu nong » tu cong, tu tong, tu tuong
cua tre » cua te, cuu tre, cua triet
duc xa » duoc xa, tuc xa, duc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sach) or (thuoc sach)) ((tu nong) OR (tu dong)) xa hoi. hieu ca dao duc xa hanh lai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (thuoc sach)) ((tu nong) OR (tu dong)) xa hoi. hieu ca dao duc xa hanh lai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (thuoc sach)) ((tu nong) OR (tu dong)) xa hoi. hieu ca dao duc xa hanh lai cua tre".
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (thuoc sach)) ((tu nong) OR (tu dong)) xa hoi. hieu ca dao duc xa hanh lai cua tre*.