Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hieu va » lieu va, hieu qua
xuc van » duc van, luc van, vuc van
cuu tre » cua tre, cau tren, cau treo
y nang » ky nang, ly nang, v nang
va cam » va cham, va cac, va cao
anh vi » hanh vi, anh ve, anh vu
anh va » hanh va
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach y nang x hoi. hieu va cam xuc van ((anh vi) or (anh va)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y nang x hoi. hieu va cam xuc van ((anh vi) OR (anh va)) cuu tre.
• Adding a wildcard symbol may retrieve word variants: thu sach y nang x hoi. hieu va cam xuc van ((anh vi) or (anh va)) cuu tre*.