Perhaps you should try some spelling variations:
nhieu viec » hieu viec, nhien viet
viec cam » viec lam, viec cua, viec va
tinh doi » trinh doc, trinh do, tinh hoc
sach ky » sach y, sach ty, sach kem
lang xa » lang ha, dang xay, lang van
xuc may » xuc hay, truc may, phuc may
cua tre » cuu tre, cua triet, dua tren
sac ky » cac ky, sai ky
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: su ((sach ky) or (sac ky)) lang xa hoi. nhieu viec cam xuc may tinh doi ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ky) OR (sac ky)) lang xa hoi. nhieu viec cam xuc may tinh doi ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: su ((sach ky) or (sac ky)) lang xa hoi. nhieu viec cam xuc may tinh doi ((cua tre) or (cua te))*.