Perhaps you should try some spelling variations:
nhieu viec » hieu viec, nhien viet
viec ban » viec lam, viec va, viec tai
ban thuc » ban thuoc, dan thuc, van thuc
thuc cao » thuoc cao, thuc co, thuc can
te sach » toc sach
sach ty » sach y, sach tu, sach thu
ty lang » tay lang, ty xang, ty hang
lang xa » lang ha, dang xay, lang van
cua tre » cua te, cuu tre, cua triet
dan vi » doan vi, dan va, dan ve

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ty lang xa hoi. nhieu viec ban thuc cao ((((dan vi) or (gan vi))) or (don vi)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty lang xa hoi. nhieu viec ban thuc cao ((((dan vi) OR (gan vi))) OR (don vi)) cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach ty lang xa hoi. nhieu viec ban thuc cao ((((dan vi) or (gan vi))) or (don vi)) cua tre*.