Perhaps you should try some spelling variations:
nhan luc » nang luc
sach vay » sach va, sach hay, sach nay
cua tre » cua te, cua triet, dua tren
hieu de » hieu ve, hieu he, hieu le
de nhan » do nhan, tue nhan, de thanh
nang xa » nang x, lang xa, nang ma
cuu tre » cau tren, cau treo
luc va » duc va, tuc va, loc va
va don » va dong, va doc, va do

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: te ((sach vay) OR (sach y)) nang xa hoi. hieu de nhan luc va don vi ((cua tre) OR (cuu tre))~.
• Adding a wildcard symbol may retrieve word variants: te ((sach vay) or (sach y)) nang xa hoi. hieu de nhan luc va don vi ((cua tre) or (cuu tre))*.