Perhaps you should try some spelling variations:
nhien viet » nhin viet, nghiep viet, trien viet
hieu viec » nhieu viec, hieu ve, sieu viet
hanh dai » hanh tai, hanh dao, vanh dai
tu sach » thu sach, su sach, te sach
va hanh » van hanh, va thanh, va danh
cac xuc » cam xuc, cac nuoc, chat xuc
xuc va » duc va, tuc va, luc va
y nang » ky nang, ly nang, v nang
cua te » cua tu
o hoi » co hoi, o hoc, o hai
x hoi » xa hoi, x ho, 5 hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y nang ((x hoi) or (o hoi)). ((hieu viec) or (nhien viet)) cac xuc va hanh dai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang ((x hoi) OR (o hoi)). ((hieu viec) OR (nhien viet)) cac xuc va hanh dai cua te.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang ((x hoi) or (o hoi)). ((hieu viec) or (nhien viet)) cac xuc va hanh dai cua te*.