Perhaps you should try some spelling variations:
nhieu viec » hieu viec, nhien viet
viec dang » viec tang, vien dang, viec giang
dang thuc » dang thuoc, dan thuc, nang thuc
cua triet » cua viet, su triet, va triet
toc sach » hoc sach, doc sach, thuoc sach
thuc cao » thuoc cao, thuc co, thuc can
sach ty » sach y, sach tu, sach thu
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
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 ty nang x hoi. nhieu viec dang thuc cao dan vi ((cuu tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ty nang x hoi. nhieu viec dang thuc cao dan vi ((cuu tre) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: toc sach ty nang x hoi. nhieu viec dang thuc cao dan vi ((cuu tre) or (cua triet))*.