Perhaps you should try some spelling variations:
sach ky » sac ky, sach ty, sach kem
ban anh » ban hanh, ban banh, ban danh
cao duc » dao duc, cao suc, giao duc
cao xuc » cam xuc, cao suc, chat xuc
cuu tre » cua tre, cau tren, cau treo
hieu va » lieu va, hieu qua
x hoi » xa hoi, o hoi, x ho
d cuu » _ cuu

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) or (sach y)) nang x hoi. hieu va ((cao xuc) OR (cao duc)) ban anh d cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sach y)) nang x hoi. hieu va ((cao xuc) OR (cao duc)) ban anh d cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) or (sach y)) nang x hoi. hieu va ((cao xuc) OR (cao duc)) ban anh d cuu tre".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sach y)) nang x hoi. hieu va ((cao xuc) OR (cao duc)) ban anh d cuu tre*.