Perhaps you should try some spelling variations:
nhieu viec » hieu viec, nhien viet
cua triet » cua viet, su triet, va triet
toc sach » hoc sach, doc sach, thuoc sach
viec dai » vien dai, viec tai, viec dat
dai thuc » dan thuc, dai thu, dai thua
thuc cao » thuoc cao, thuc co, thuc can
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
cao dan » cao dang, cao danh, cac dan
dan di » danh di, dan da, dan de
di cua » dai cua, doi cua, de cua

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 xa hoi. nhieu viec dai thuc cao dan di cua triet~.
• Adding a wildcard symbol may retrieve word variants: toc sach ty nang xa hoi. nhieu viec dai thuc cao dan di cua triet*.