Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
sach thu » sach thue, sach thieu, sach tham
van hanh » ban hanh, van anh, van ban
dau truc » cau truc, dai truc, doan truc
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
sach ky » sac ky, sach y, sach ty
lang xa » lang ha, dang xay, lang van
va dau » va dao

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 ky) or (sach thu)) lang xa hoi. lieu va dau truc ((van hanh) or (van thanh)) vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sach thu)) lang xa hoi. lieu va dau truc ((van hanh) OR (van thanh)) vai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sach thu)) lang xa hoi. lieu va dau truc ((van hanh) or (van thanh)) vai cua tre*.