Perhaps you should try some spelling variations:
te sach » toc sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
cac duc » cac du, cao duc, cac dac
dinh vi » dinh viet, dinh tri, dinh thi
dinh ve » dinh ket, dinh van
cua tre » cua te, cuu tre, cua triet
ve cac » va cac, vien cac

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty nang xa hoi. hieu ve cac duc va ((dinh vi) OR (dinh ve)) cua tre~".
• Adding a wildcard symbol may retrieve word variants: te sach ty nang xa hoi. hieu ve cac duc va ((dinh vi) OR (dinh ve)) cua tre*.