Perhaps you should try some spelling variations:
nhieu viec » hieu viec, nhien viet
truc may » tren may, truc va
trinh di » trinh do, trinh dien, trinh dinh
viec cam » viec lam, viec cua, viec va
cam truc » cau truc, nam truc, lam truoc
cua tre » cuu tre, cua triet, dua tren
su sach » so sach, vu sach
tinh di » tinh doi, tinh da, tin di
sach ky » sac ky, sach y, sach ty
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
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 lang xa hoi. nhieu viec cam truc may ((tinh di) or (trinh di)) ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky lang xa hoi. nhieu viec cam truc may ((tinh di) OR (trinh di)) ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: su sach ky lang xa hoi. nhieu viec cam truc may ((tinh di) or (trinh di)) ((cua tre) or (cua te))*.