Perhaps you should try some spelling variations:
nhieu vien » nhieu viec, nhiet dien, thieu nien
vien dai » hien dai
dai thuc » dan thuc, dai thu, dai thua
cao dan » cao danh, cac dan, ca dan
sach ty » sach y, sach tu, sach thu
te sach » toc sach
lang xa » lang ha, dang xay, lang van
nang xa » nang x, nang ma, mang xa
cua tre » cua te, cuu tre, cua triet
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: te sach ty ((nang xa) OR (lang xa)) hoi. nhieu vien dai thuc ((cao dan) or (cao dang)) vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty ((nang xa) OR (lang xa)) hoi. nhieu vien dai thuc ((cao dan) OR (cao dang)) vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty ((nang xa) OR (lang xa)) hoi. nhieu vien dai thuc ((cao dan) or (cao dang)) vi cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ty ((nang xa) OR (lang xa)) hoi. nhieu vien dai thuc ((cao dan) or (cao dang)) vi cua tre*.