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

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