Perhaps you should try some spelling variations:
te sach » toc sach
sach vu » sach va, sach tu, sach uu
vu nang » vuc nang, va nang, vu dang
nang xa » nang x, lang xa, nang ma
hieu va » hieu qua
cao xuc » cam xuc, cao duc, cao suc
xuc van » duc van, luc van, vuc van
minh ve » dinh ve, minh va, kinh ve
su hien » su kien, su tien, thu hien
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 xa hoi. ((hieu va) or (lieu va)) cao xuc van minh ve su hien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach vu nang xa hoi. ((hieu va) OR (lieu va)) cao xuc van minh ve su hien.
• Adding a wildcard symbol may retrieve word variants: te sach vu nang xa hoi. ((hieu va) or (lieu va)) cao xuc van minh ve su hien*.