Perhaps you should try some spelling variations:
nhieu viec » hieu viec, nhien viet
dua tren » dung tren
tinh doi » trinh doc, trinh do, tinh hoc
tu sach » thu sach, su sach, tu cach
va tinh » may tinh
viec va » vien va, viec cua, viec lam
tang xa » trang xa, tang ma, lang xa
ky tang » ky nang, ky dang, kho tang
te sach » toc sach
cuu tre » cua tre, cau tren, cau treo
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) or (te sach)) ky tang xa hoi. nhieu viec va xuc va tinh doi ((dua tren) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) ky tang xa hoi. nhieu viec va xuc va tinh doi ((dua tren) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) ky tang xa hoi. nhieu viec va xuc va tinh doi ((dua tren) or (cuu tre))*.