Perhaps you should try some spelling variations:
nhieu viec » hieu viec, nhien viet
thuoc sach » hoc sach, nuoc sach, thuat sach
toc sach » hoc sach, doc sach, nuoc sach
viec dan » viec dang, viec ban, viec dat
dan thuc » dan toc, am thuc
thuc cao » thuoc cao, thuc co, thuc can
ty nang » ky nang, ty xang, ty hang
cao dan » cao dang, cao danh, cac dan
cuu tre » cua tre, cau tren, cau treo
dan vi » doan vi, don vi, dan va
vi cuu » vi luu, vinh cuu
x hoi » xa hoi, o hoi, x ho

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) OR (thuoc sach)) ty nang x hoi. nhieu viec dan thuc cao dan vi cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((toc sach) OR (thuoc sach)) ty nang x hoi. nhieu viec dan thuc cao dan vi cuu tre".
• Adding a wildcard symbol may retrieve word variants: ((toc sach) OR (thuoc sach)) ty nang x hoi. nhieu viec dan thuc cao dan vi cuu tre*.