Perhaps you should try some spelling variations:
dinh tai » dinh toai, dinh tri, dinh thi
tu sach » thu sach, su sach, te sach
tai cua » thai cua, tai cuc, tri cua
luc van » luoc van, luu van, duc van
xuc van » duc van, vuc van, xuc ban
vu kham » vu khanh
vu cham » va cham, tu cham, qua cham
lang xa » lang ha, dang xay, lang van
cua tre » cua te, cuu tre, cua triet
y lang » o lang, _ lang, tay 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 xa hoi. hieu ((vu cham) or (vu kham)) ((xuc van) OR (luc van)) dinh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y lang xa hoi. hieu ((vu cham) OR (vu kham)) ((xuc van) OR (luc van)) dinh tai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y lang xa hoi. hieu ((vu cham) or (vu kham)) ((xuc van) OR (luc van)) dinh tai cua tre*".