Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
tinh hoi » trinh hoi, tinh hoc, tinh hai
tu sach » thu sach, su sach, te sach
cua tre » cuu tre, cua triet, dua tren
va tinh » may tinh
viec va » vien va, viec cua, viec lam
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
so sach » so sanh, bo sach, co sach
va xuc » va xac, va xu
xuc va » duc va, tuc va, luc va
cua te » cua tu

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