Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thanh ve » hanh ve, thanh va, thanh vien
su sach » so sach, vu sach
vu nang » vuc nang, va nang, v nang
vu dang » su dang, vu quang, cua dang
qua cao » qua cac, qua ca, qua cai
cao vuc » cao duc, cao suc, cao vu
vuc van » duc van, luc van, thuc van
x hoi » xa hoi, o hoi, x ho
ve su » va su
kien » bien, vien, tien

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ((vu nang) OR (vu dang)) x hoi. hieu qua cao vuc van thanh ve su kien~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((vu nang) OR (vu dang)) x hoi. hieu qua cao vuc van thanh ve su kien".
• Adding a wildcard symbol may retrieve word variants: su sach ((vu nang) OR (vu dang)) x hoi. hieu qua cao vuc van thanh ve su kien*.