Perhaps you should try some spelling variations:
doc sach » hoc sach, toc sach, nuoc sach
toc cham » toc thai
tuc cham » phuc cham, thuc chan, thuc chim
dinh tai » dinh toai, dinh tri, dinh thi
van dinh » van minh, van dich, va dinh
tai cua » thai cua, tai cuc, tri cua
xuc van » duc van, luc van, vuc van
tu cham » thi cham
lang xa » lang ha, dang xay, lang van
cua tre » cua te, cuu tre, cua triet
y lang » o lang, _ lang, tay lang

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

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