Perhaps you should try some spelling variations:
nhieu viec » hieu viec, nhien viet
viec dan » viec dang, viec ban, viec dat
dan thuc » dan toc, am thuc
cao danh » cao dang, cao anh, cau danh
sach thu » sach thue, sach thieu, sach tham
cao dan » cao dang, cac dan, ca dan
te sach » toc sach
mang xa » lang xa, mang may, dang xay
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 thu ((mang xa) or (nang x)) hoi. nhieu viec dan thuc ((cao dan) OR (cao danh)) vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach thu ((mang xa) OR (nang x)) hoi. nhieu viec dan thuc ((cao dan) OR (cao danh)) vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach thu ((mang xa) or (nang x)) hoi. nhieu viec dan thuc ((cao dan) OR (cao danh)) vi cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach thu ((mang xa) or (nang x)) hoi. nhieu viec dan thuc ((cao dan) OR (cao danh)) vi cua tre*.