Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
thanh tai » thanh hai, thanh toan, doanh tai
ban thanh » ban hanh, ban hang
toc sach » hoc sach, doc sach, nuoc sach
cua tre » cua te, cuu tre, cua triet
tai cua » thai cua, tai cuc, tri cua
xuc ban » duc ban, cuc ban, quoc ban
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
va cam » va cham, va cac, va cao
te sac » te sach, te cac, te san

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sac) or (((toc sach) OR (thuoc sach)))) ky lang xa hoi. lieu va cam xuc ban thanh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sac) OR (((toc sach) OR (thuoc sach)))) ky lang xa hoi. lieu va cam xuc ban thanh tai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sac) or (((toc sach) OR (thuoc sach)))) ky lang xa hoi. lieu va cam xuc ban thanh tai cua tre".
• Adding a wildcard symbol may retrieve word variants: ((te sac) or (((toc sach) OR (thuoc sach)))) ky lang xa hoi. lieu va cam xuc ban thanh tai cua tre*.