Perhaps you should try some spelling variations:
nhieu viec » hieu viec, nhien viet
cua triet » cua viet, su triet, va triet
viec cam » viec lam, viec cua, viec va
tinh hoc » sinh hoc, tin hoc, hinh hoc
sach ky » sac ky, sach ty, sach kem
lang xa » lang ha, dang xay, lang van
va tinh » may tinh
cua tre » cua te, cuu tre, dua tren
xuc va » duc va, tuc va, luc va

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 ky) OR (sach y)) lang xa hoi. nhieu viec cam xuc va tinh hoc ((cua tre) OR (cua triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) OR (sach y)) lang xa hoi. nhieu viec cam xuc va tinh hoc ((cua tre) or (cua triet))~".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) OR (sach y)) lang xa hoi. nhieu viec cam xuc va tinh hoc ((cua tre) or (cua triet))*.