Perhaps you should try some spelling variations:
thu sach » thuat sach, thuoc sach, thu hoach
tu sach » su sach, te sach, tu cach
cua tre » cua te, cua triet, dua tren
ban anh » ban hanh, ban banh, ban danh
xuc ban » duc ban, cuc ban, quoc ban
cuu tre » cau tren, cau treo
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
anh vi » hanh vi, anh va, anh ve
va cam » va cham, va cac, va cao

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) ky lang xa hoi. lieu va cam xuc ban anh vi ((cua tre) OR (cuu tre))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (thu sach)) ky lang xa hoi. lieu va cam xuc ban anh vi ((cua tre) OR (cuu tre))~".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu sach)) ky lang xa hoi. lieu va cam xuc ban anh vi ((cua tre) OR (cuu tre))*.