Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
dua tren » dung tren
sach ty » sach y, sach tu, sach thu
dinh ve » dinh ket, dinh van
va dinh » van dinh, va kinh, va tinh
ve cham » va cham, ve chat, vu cham
lang xa » lang ha, dang xay, lang van
ty lang » tay lang, ty xang, ty hang
cuu tre » cua tre, cau tren, cau treo
ve cam » ve cac, va cam, ve cai
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: toc sach ty lang xa hoi. hieu ((ve cam) or (ve cham)) xuc va dinh ve ((dua tren) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ty lang xa hoi. hieu ((ve cam) OR (ve cham)) xuc va dinh ve ((dua tren) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: toc sach ty lang xa hoi. hieu ((ve cam) or (ve cham)) xuc va dinh ve ((dua tren) or (cuu tre))*.