Perhaps you should try some spelling variations:
nhieu viec » hieu viec, nhien viet
cua triet » cua viet, su triet, va triet
viec sat » viec dat, viec lam, viec va
sat thuc » am thuc, va thuc, dan thuc
thuc cao » thuoc cao, thuc co, thuc can
dan loai » dang loai, phan loai, nhan loai
te sach » toc sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
dan lai » dan lap, dan lat, dan li

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 hoi. nhieu viec sat thuc cao ((dan lai) OR (dan loai)) cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty nang xa hoi. nhieu viec sat thuc cao ((dan lai) OR (dan loai)) cua triet".
• Adding a wildcard symbol may retrieve word variants: te sach ty nang xa hoi. nhieu viec sat thuc cao ((dan lai) OR (dan loai)) cua triet*.