Perhaps you should try some spelling variations:
thu sach » thuat sach, thuoc sach, thu hoach
tay lang » tai lang, tay tang, tay quang
dinh lai » dinh lam, dinh lap, dinh tai
tu sach » su sach, te sach, tu cach
lai cua » dai cua, hai cua, lai chau
vu cham » va cham, vu kham, tu cham
hieu vu » hieu va, hieu ve, hieu su
lang xa » lang ha, dang xay, lang van
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va

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) OR (thu sach)) tay lang xa hoi. hieu vu cham ((xuc va) or (tuc xa)) dinh lai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) tay lang xa hoi. hieu vu cham ((xuc va) OR (tuc xa)) dinh lai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (thu sach)) tay lang xa hoi. hieu vu cham ((xuc va) or (tuc xa)) dinh lai cua tre*".