Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
sach ky » sac ky, sach y, sach ty
hanh de » hanh ve, hanh kem
duc van » duc va, duc tan, duc manh
luc ban » duc ban, cuc ban, luc bat
cua tre » cua te, cuu tre, cua triet
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
ve cam » ve cham, ve cac, ve cai
de cua » le cua, te cua, dieu cua
va cam » va cham, va cac, va cao

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 ky lang xa hoi. hieu ((ve cam) or (va cam)) ((luc ban) or (duc van)) hanh de cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ky lang xa hoi. hieu ((ve cam) OR (va cam)) ((luc ban) OR (duc van)) hanh de cua tre.
• Adding a wildcard symbol may retrieve word variants: toc sach ky lang xa hoi. hieu ((ve cam) or (va cam)) ((luc ban) or (duc van)) hanh de cua tre*.