Perhaps you should try some spelling variations:
dinh tai » dinh toai, dinh tri, dinh thi
van dinh » van minh, van dich, va dinh
tu sach » thu sach, su sach, te sach
vu kham » vu khanh
tai cua » thai cua, tai cuc, tri cua
xuc van » duc van, luc van, vuc van
cua tre » cua te, cuu tre, cua triet
vu cham » va cham, tu cham, qua cham
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.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ((y lang) OR (o lang)) xa hoi. hieu ((vu cham) or (vu kham)) xuc van dinh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((y lang) OR (o lang)) xa hoi. hieu ((vu cham) OR (vu kham)) xuc van dinh tai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((y lang) OR (o lang)) xa hoi. hieu ((vu cham) or (vu kham)) xuc van dinh tai cua tre*".