Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
ban hanh » ban hang
hanh dai » hanh tai, hanh dao, vanh dai
cua viet » ca viet, hoa viet, cua vat
tu sach » thu sach, su sach, te sach
nang ma » tang ma, sang ma, nang cao
cac xuc » cac nuoc, chat xuc, cac cuoc
y nang » ky nang, ly nang, v 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: tu sach y nang ma hoi. hieu viec ((cac xuc) OR (cam xuc)) ban hanh dai cua viet~.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang ma hoi. hieu viec ((cac xuc) or (cam xuc)) ban hanh dai cua viet*.