Perhaps you should try some spelling variations:
hieu hieu » hien hieu, hieu hien, thien hieu
hieu cac » hieu luc, hieu va, hieu van
nang xa » nang x, lang xa, nang ma
dinh va » dinh van, dinh ve, sinh va
tinh va » tich va, trinh van, trinh vat
cuu tre » cua tre, cau tren, cau treo
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
lao va » cao va, bao va, dao va

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

• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky nang xa hoi. hieu hieu cac ((lao va) OR (tao va)) ((dinh va) OR (tinh va)) cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky nang xa hoi. hieu hieu cac ((lao va) OR (tao va)) ((dinh va) or (tinh va)) cuu tre~".
• Adding a wildcard symbol may retrieve word variants: su sac ky nang xa hoi. hieu hieu cac ((lao va) OR (tao va)) ((dinh va) or (tinh va)) cuu tre*.