Perhaps you should try some spelling variations:
quang dien » quan dien, luong dien, quan den
ban quang » ban quan, van quang, dan quang
dien cuu » dien cuc, dien cu, dien cua
vuc nang » cuc nang, vu nang, chuc nang
te sach » toc sach
hieu va » lieu va, hieu qua
luc ban » duc ban, cuc ban, luc bat
cam luc » cam xuc, cau luc
cuu tre » cua tre, cau tren, cau treo
va cam » va cham, va cac, va cao
v nang » va nang, vu nang, van nang
x hoi » xa hoi, o hoi, 5 hoi

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 ((v nang) or (vuc nang)) ((x hoi) or (x ho)). hieu va cam luc ban quang dien cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((v nang) OR (vuc nang)) ((x hoi) OR (x ho)). hieu va cam luc ban quang dien cuu tre.
• Adding a wildcard symbol may retrieve word variants: te sach ((v nang) or (vuc nang)) ((x hoi) or (x ho)). hieu va cam luc ban quang dien cuu tre*.