Perhaps you should try some spelling variations:
dien cua » dien cuc, dien cu, tien cua
dieu cua » dieu tra
te sach » toc sach
nang xa » nang x, lang xa, nang ma
hieu su » hieu sau, tieu su, hieu so
su cham » su pham, tu cham, vu cham
sach 2 » sach y
2 nang » v nang
soc va » hoc va, loc va, doc va
va dao » ca dao

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach 2 nang xa hoi. hieu su cham soc va dao ((dien cua) OR (dieu cua)) tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach 2 nang xa hoi. hieu su cham soc va dao ((dien cua) OR (dieu cua)) tre".
• Adding a wildcard symbol may retrieve word variants: te sach 2 nang xa hoi. hieu su cham soc va dao ((dien cua) OR (dieu cua)) tre*.