Perhaps you should try some spelling variations:
vien cac » vien bach, vien dai, vien da
hanh dai » hanh tai, hanh dao, vanh dai
va hanh » van hanh, va thanh, va danh
te sach » toc sach
ty nang » ky nang, ty hang, ly nang
ke cau » ket cau
tuc va » thuc va, truc va, tuc xa
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.

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ((ty nang) OR (ty xang)) x hoi. hieu ((vien cac) or (ke cau)) tuc va hanh dai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ty nang) OR (ty xang)) x hoi. hieu ((vien cac) OR (ke cau)) tuc va hanh dai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ty nang) OR (ty xang)) x hoi. hieu ((vien cac) or (ke cau)) tuc va hanh dai cua te".
• Adding a wildcard symbol may retrieve word variants: te sach ((ty nang) OR (ty xang)) x hoi. hieu ((vien cac) or (ke cau)) tuc va hanh dai cua te*.