Perhaps you should try some spelling variations:
nhieu viec » hieu viec, nhien viet
thuc can » thuc chan, thuc dan, thuc van
dan thuc » dan toc, am thuc
viec dan » viec dang, viec ban, viec dat
toc sach » hoc sach, doc sach, thuoc sach
nang ma » tang ma, sang ma, nang cao
sach tu » sach thu, cach tu, sach ty
nang xa » nang x, lang xa, mang xa
can dan » canh dan, cac dan, can ban
cua tre » cua te, cuu tre, cua triet
dan vi » doan vi, don vi, dan va
vi cua » vai cua, di cua

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

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