Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
vanh dai » van dai, vanh tai, lanh dao
hanh tai » thanh tai, hang tai, han tai
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
hieu va » lieu va, hieu qua
cuu tre » cua tre, cau tren, cau treo
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc 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: toc sach ty nang x hoi. hieu va cam xuc va ((vanh dai) or (hanh tai)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ty nang x hoi. hieu va cam xuc va ((vanh dai) OR (hanh tai)) cuu tre*.