Perhaps you should try some spelling variations:
nhieu viec » hieu viec, nhien viet
viec dai » vien dai, viec tai, viec dat
dai thuc » dan thuc, dai thu, dai thua
sach ty » sach tu, sach thu, xach tay
nang xa » nang x, lang xa, nang ma
thuc va » thuc vat, thuc dan, thuc day
dan vat » dang vat, van vat, dan va
vat cua » mat cua, bat cua, dat cua
cua tre » cua te, cuu tre, cua triet
va dan » ca dan, va dao, va dau

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) OR (sach y)) nang xa hoi. nhieu viec dai thuc va dan vat cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ty) OR (sach y)) nang xa hoi. nhieu viec dai thuc va dan vat cua tre".
• Adding a wildcard symbol may retrieve word variants: te ((sach ty) OR (sach y)) nang xa hoi. nhieu viec dai thuc va dan vat cua tre*.