Perhaps you should try some spelling variations:
hieu ke » hieu kem, chieu ke, hieu ky
cau luc » cau truc, cau phuc
va hanh » van hanh, va thanh, va danh
cuu tre » cua tre, cau tren, cau treo
te cac » tu cac, te cao, de cac
ve cac » va cac, vien cac
ke cau » ket cau
luc va » duc va, tuc va, loc va
cua te » cua tu
x hoi » xa hoi, o hoi, x ho

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 cac) OR (ve cac)) ky nang x hoi. hieu ke cau luc va hanh vi ((cua te) OR (cuu tre))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te cac) OR (ve cac)) ky nang x hoi. hieu ke cau luc va hanh vi ((cua te) or (cuu tre))~".
• Adding a wildcard symbol may retrieve word variants: ((te cac) OR (ve cac)) ky nang x hoi. hieu ke cau luc va hanh vi ((cua te) or (cuu tre))*.