Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
dung dat » dung va, dung tai
vat dung » van dung, va dung, viet dung
cham xuc » cam xuc, chat xuc, cham soc
dat cua » dai cua, day cua, mat cua
xuc vat » thuc vat, xuat vat
vu cham » va cham, vu kham, tu cham
hieu vu » hieu va, hieu ve, hieu su
cua tre » cua te, cuu tre, cua triet
ty nang » ky nang, ty xang, ty hang
ma hoi » mai hoi, ma hoa, me hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sach) or (toc sach)) ty nang ((ma hoi) or (xa hoi)). hieu vu cham xuc vat dung dat cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) ty nang ((ma hoi) OR (xa hoi)). hieu vu cham xuc vat dung dat cua tre.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (toc sach)) ty nang ((ma hoi) or (xa hoi)). hieu vu cham xuc vat dung dat cua tre*.