Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
nguoi san » nguoi tay, nguoi dao, nguoi ma
cac nguoi » ca nguoi, tac nguoi, mac nguoi
viec cac » vien cac, viec cua, viec lam
tai cua » thai cua, tai cuc, tri cua
anh tai » hanh tai, anh thai, vanh tai
san anh » van anh, lan anh, sat anh
so sach » so sanh, bo sach, co sach
vu sach » vu bach, su sach, vu khach
cua tre » cua te, cuu tre, cua triet
co hoi » co loi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((so sach) or (vu sach)) ky nang ((co hoi) or (co hoc)). hieu viec cac nguoi san anh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (vu sach)) ky nang ((co hoi) OR (co hoc)). hieu viec cac nguoi san anh tai cua tre.
• Adding a wildcard symbol may retrieve word variants: ((so sach) or (vu sach)) ky nang ((co hoi) or (co hoc)). hieu viec cac nguoi san anh tai cua tre*.