Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
cam cuc » cam xuc, cham cuu, pham cuc
dinh vi » dinh ve, dinh viet, dinh tri
danh vi » hanh vi, danh di, danh va
cuc ban » cua ban, cac ban, cuu ban
cua tre » cua te, cuu tre, cua triet
sach ky » sac ky, sach y, sach ty
hieu va » hieu qua
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang

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: thuat sach ky lang xa hoi. ((hieu va) OR (lieu va)) cam cuc ban ((danh vi) OR (dinh vi)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ky lang xa hoi. ((hieu va) or (lieu va)) cam cuc ban ((danh vi) OR (dinh vi)) cua tre~".
• Adding a wildcard symbol may retrieve word variants: thuat sach ky lang xa hoi. ((hieu va) or (lieu va)) cam cuc ban ((danh vi) OR (dinh vi)) cua tre*.