Perhaps you should try some spelling variations:
nhieu viec » hieu viec, nhien viet
sieu viet » su viet, dien viet, bien viet
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
hang di » hang doi, hang vi, hang dien
lang ha » long ha
va hang » van hang, va nang, va lang
cac tuc » cac toc, cac tu, cac tac
di cua » dai cua, doi cua, de cua
tuc va » thuc va, truc va, tuc xa
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: tu sach y ((nang xa) or (lang ha)) hoi. ((nhieu viec) or (sieu viet)) cac tuc va hang di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y ((nang xa) OR (lang ha)) hoi. ((nhieu viec) OR (sieu viet)) cac tuc va hang di cua te.
• Adding a wildcard symbol may retrieve word variants: tu sach y ((nang xa) or (lang ha)) hoi. ((nhieu viec) or (sieu viet)) cac tuc va hang di cua te*.