Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
duc manh » suc manh, duc anh, duc minh
dinh lai » dinh lam, dinh lap, dinh tai
hieu vu » hieu va, hieu ve, hieu su
vu cham » va cham, vu kham, tu cham
xuc van » duc van, luc van, vuc van
lai cuu » lai cua, lai chau, lai cuoc
cuu tre » cua tre, cau tren, cau treo
y lang » _ lang, tay lang, yen lang
o lang » hoa lang, hoi lang

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

• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ((y lang) OR (o lang)) xa hoi. hieu vu cham ((xuc van) OR (duc manh)) dinh lai cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ((y lang) OR (o lang)) xa hoi. hieu vu cham ((xuc van) or (duc manh)) dinh lai cuu tre~".
• Adding a wildcard symbol may retrieve word variants: toc sach ((y lang) OR (o lang)) xa hoi. hieu vu cham ((xuc van) or (duc manh)) dinh lai cuu tre*.