Perhaps you should try some spelling variations:
nhieu viec » hieu viec, nhien viet
tinh dai » trinh dai, tinh da, tinh hai
tu sach » thu sach, su sach, te sach
ky lang » ky dang, ky tang, tay lang
viec va » vien va, viec cua, viec lam
va tinh » may tinh
cua tre » cua te, cuu tre, cua triet
va xuc » va xac, va xu
xuc va » duc va, tuc va, luc va

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 ((ky lang) or (ky nang)) xa hoi. nhieu viec va xuc va tinh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((ky lang) OR (ky nang)) xa hoi. nhieu viec va xuc va tinh dai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ((ky lang) or (ky nang)) xa hoi. nhieu viec va xuc va tinh dai cua tre*.