Perhaps you should try some spelling variations:
dinh vi » dinh ve, dinh viet, dinh tri
dinh di » dinh du, danh di, dinh da
cao loc » cao hoc, cao toc, cao oc
cua tre » cua te, cuu tre, cua triet
nang xa » nang x, lang xa, nang ma
sach va » sach xa, sach ha, sach dao
sach v » sach y, sach 2, sach vay
loc va » hoc va, luc va
va cao » va cac, va co, va dao

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 v) OR (sach va)) nang xa hoi. lieu va cao loc va ((dinh di) OR (dinh vi)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((sach v) or (sach va)) nang xa hoi. lieu va cao loc va ((dinh di) OR (dinh vi)) cua tre~".
• Adding a wildcard symbol may retrieve word variants: toc ((sach v) or (sach va)) nang xa hoi. lieu va cao loc va ((dinh di) OR (dinh vi)) cua tre*.