Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
hieu van » hieu va, thien van, lieu va
cham xuc » chat xuc, cham soc, pham duc
va danh » va dinh, va dan, dia danh
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, ban hanh
cua tre » cua te, cuu tre, cua triet
nang ma » tang ma, sang ma, nang cao
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach y nang ma hoi. hieu van ((cham xuc) OR (cam xuc)) ((va danh) or (va hanh)) vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach y nang ma hoi. hieu van ((cham xuc) OR (cam xuc)) ((va danh) OR (va hanh)) vai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach y nang ma hoi. hieu van ((cham xuc) OR (cam xuc)) ((va danh) or (va hanh)) vai cua tre*".