Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
ban thanh » ban hanh, ban hang
sach thu » sach thue, sach thieu, sach tham
thu hang » thi hang, thuc hanh, thu huong
tu sach » thu sach, su sach, te sach
hang xa » hoang xa, hang va, hang ca
hieu ve » hieu va, hieu van
cam duc » cam xuc, cao duc, nam duoc
cua tre » cua te, cuu tre, cua triet

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 thu hang xa hoi. hieu ve ((cam duc) or (pham duc)) ban thanh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach thu hang xa hoi. hieu ve ((cam duc) OR (pham duc)) ban thanh dai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach thu hang xa hoi. hieu ve ((cam duc) or (pham duc)) ban thanh dai cua tre*.