Perhaps you should try some spelling variations:
nhieu viec » hieu viec, nhien viet
cua triet » cua viet, su triet, va triet
viec ban » viec lam, viec va, viec tai
ban thuc » ban thuoc, dan thuc, van thuc
thuc cao » thuoc cao, thuc co, thuc can
te sach » toc sach
sach ty » sach y, sach tu, sach thu
nang xa » nang x, lang xa, mang xa
nang ma » tang ma, sang ma, nang cao
dang vi » dung vi, dang va, hang vi
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 (nang ma)) hoi. nhieu viec ban thuc cao dang vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty ((nang xa) OR (nang ma)) hoi. nhieu viec ban thuc cao dang vi cua triet.
• Adding a wildcard symbol may retrieve word variants: te sach ty ((nang xa) or (nang ma)) hoi. nhieu viec ban thuc cao dang vi cua triet*.