Perhaps you should try some spelling variations:
vuc nang » cuc nang, van nang, va nang
te sach » toc sach
vu nang » va nang, vu dang, v nang
hieu va » lieu va, hieu qua
cao xuc » cam xuc, cao duc, cao suc
xuc van » duc van, luc van, vuc van
van anh » van thanh, tuan anh, van minh
su hien » su kien, su tien, thu hien
va cao » va cac, va co, va dao
anh ve » hanh ve, anh va, anh viet
ve su » va su
chuc » thuc, chu, chua

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 ((vu nang) or (((vuc nang) OR (chuc nang)))) xa hoi. hieu va cao xuc van anh ve su hien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((vu nang) OR (((vuc nang) OR (chuc nang)))) xa hoi. hieu va cao xuc van anh ve su hien.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((vu nang) or (((vuc nang) OR (chuc nang)))) xa hoi. hieu va cao xuc van anh ve su hien".
• Adding a wildcard symbol may retrieve word variants: te sach ((vu nang) or (((vuc nang) OR (chuc nang)))) xa hoi. hieu va cao xuc van anh ve su hien*.