Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
thanh ve » thanh va, thanh vien, thanh van
hanh ve » hanh vi, hanh va, hanh kem
xuc van » duc van, luc van, vuc van
cao xuc » cam xuc, cao duc, cao suc
su tien » su kien, su hien, tu tieng
hieu va » lieu va, hieu qua
vu dang » su dang, vu quang, cua dang
vu nang » vuc nang, va nang, v nang
va cao » va cac, va co, va dao
x hoi » xa hoi, o hoi, x ho

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ((vu nang) OR (vu dang)) x hoi. hieu va cao xuc van ((thanh ve) or (hanh ve)) su tien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((vu nang) OR (vu dang)) x hoi. hieu va cao xuc van ((thanh ve) OR (hanh ve)) su tien.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ((vu nang) OR (vu dang)) x hoi. hieu va cao xuc van ((thanh ve) or (hanh ve)) su tien".
• Adding a wildcard symbol may retrieve word variants: thu sach ((vu nang) OR (vu dang)) x hoi. hieu va cao xuc van ((thanh ve) or (hanh ve)) su tien*.