Perhaps you should try some spelling variations:
doc sach » hoc sach, toc sach, nuoc sach
dinh tai » dinh toai, dinh tri, dinh thi
dinh lai » dinh lam, dinh lap, dinh hai
cham xuc » cam xuc, chat xuc, cham soc
cua tre » cuu tre, cua triet, dua tren
xuc van » duc van, luc van, vuc van
vu cham » va cham, vu kham, tu cham
hieu vu » hieu va, hieu ve, hieu su
lang xa » lang ha, dang xay, lang van
sach o » sach lo, sac o, sach y
o lang » hoa lang, hoi lang
cua te » cua tu

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

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