Perhaps you should try some spelling variations:
dien cua » dieu cua, dien cuc, dien cu
cham doc » cham soc, chat doc, chau doc
sach dao » lanh dao
va tinh » may tinh
vu cham » va cham, vu kham, tu cham
hieu vu » hieu va, hieu ve, hieu su
nang xa » nang x, lang xa, nang ma
sach va » sach ha, sach nha, sach bai
sach xa » sach nha, sach bai
cua tre » cua te, cuu tre, cua triet
doc va » duoc va, hoc va, duc va

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 va) or (((sach xa) OR (sach dao)))) nang xa hoi. hieu vu cham doc va tinh dien cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach va) OR (((sach xa) OR (sach dao)))) nang xa hoi. hieu vu cham doc va tinh dien cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach va) or (((sach xa) OR (sach dao)))) nang xa hoi. hieu vu cham doc va tinh dien cua tre*".