Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
hieu van » hieu va, thien van, lieu va
lang van » dang van, tang van, hoang van
dinh lai » dinh lam, dinh lap, dinh tai
van dinh » van minh, van dich, va dinh
cham xuc » cam xuc, chat xuc, cham soc
lai cua » dai cua, hai cua, lai chau
xuc van » duc van, luc van, vuc van
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va
lang ha » long ha

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach y ((lang van) or (lang ha)) hoi. ((hieu ve) OR (hieu van)) cham xuc van dinh lai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach y ((lang van) OR (lang ha)) hoi. ((hieu ve) OR (hieu van)) cham xuc van dinh lai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach y ((lang van) or (lang ha)) hoi. ((hieu ve) OR (hieu van)) cham xuc van dinh lai cua tre*".