Perhaps you should try some spelling variations:
thanh lai » thanh hai, thanh lap, thanh loi
ban thanh » ban hanh, ban hang
tu sach » thu sach, su sach, te sach
van cau » van dau, van hau, van chat
lai cua » dai cua, hai cua, lai chau
dan ban » van ban, can ban, dan ba
van cac » van hac, van bac, dan cac
sach ky » sac ky, sach y, sach ty
lang xa » lang ha, dang xay, lang van
nang xa » nang x, nang ma, mang xa
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 ky ((nang xa) OR (lang xa)) hoi. thien ((van cac) or (van cau)) dan ban thanh lai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky ((nang xa) OR (lang xa)) hoi. thien ((van cac) OR (van cau)) dan ban thanh lai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky ((nang xa) OR (lang xa)) hoi. thien ((van cac) or (van cau)) dan ban thanh lai cua tre*".