Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
va thanh » gia thanh, ban thanh, va tinh
te sach » toc sach
van cac » van hac, van cau, van bac
cac duc » cac du, cao duc, cac dac
van cua » vang cua, dan cua, nan cua
ban cua » ban quan
y nang » ky nang, ly nang, may nang
v nang » va nang, vu nang, van nang
ma hoi » mai hoi, xa hoi, ma hoa

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: te sach ((y nang) OR (v nang)) ma hoi. hieu van cac duc va thanh ((van cua) OR (ban cua)) te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((y nang) or (v nang)) ma hoi. hieu van cac duc va thanh ((van cua) OR (ban cua)) te~".
• Adding a wildcard symbol may retrieve word variants: te sach ((y nang) or (v nang)) ma hoi. hieu van cac duc va thanh ((van cua) OR (ban cua)) te*.