Perhaps you should try some spelling variations:
nhieu viec » nhien viet
hieu viec » hieu ve, sieu viet, hieu hien
cac xuc » cam xuc, cac nuoc, chat xuc
doan vi » doan va, doan thi, doan van
xuc cam » phuc cam
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
cuu tre » cua tre, cau tren, cau treo

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky nang xa hoi. ((hieu viec) or (nhieu viec)) cac xuc cam ((doan vi) OR (don vi)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang xa hoi. ((hieu viec) OR (nhieu viec)) cac xuc cam ((doan vi) OR (don vi)) cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang xa hoi. ((hieu viec) or (nhieu viec)) cac xuc cam ((doan vi) OR (don vi)) cuu tre".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang xa hoi. ((hieu viec) or (nhieu viec)) cac xuc cam ((doan vi) OR (don vi)) cuu tre*.