Perhaps you should try some spelling variations:
sang tao » hang tai
dia danh » dia ban, gia dinh
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
hai cua » thai cua, dai cua, hoi cua
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
tao hoi » tao khoi, tao boi, tay hoi
ky sang » ky nang, ky dang, ky tang
va cam » va cham, va cac, va cao
ve cam » ve cham, ve cac, ve cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky sang tao hoi. hieu ((ve cam) OR (va cam)) xuc ((va hanh) or (dia danh)) hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky sang tao hoi. hieu ((ve cam) OR (va cam)) xuc ((va hanh) OR (dia danh)) hai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky sang tao hoi. hieu ((ve cam) OR (va cam)) xuc ((va hanh) or (dia danh)) hai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ky sang tao hoi. hieu ((ve cam) OR (va cam)) xuc ((va hanh) or (dia danh)) hai cua tre*.