Perhaps you should try some spelling variations:
hieu viec » nhieu viec, sieu viet, hieu hien
sach nuoc » sach duoc, cac nuoc, bach tuoc
dinh doi » tinh doi, dinh toi, dinh doc
dinh moi » dinh so, dinh tri, dinh thi
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
bach y » sach y
y nang » ky nang, ly nang, v nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu bach y nang xa hoi. ((hieu viec) or (hieu ve)) sach nuoc va ((dinh doi) OR (dinh moi)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu bach y nang xa hoi. ((hieu viec) OR (hieu ve)) sach nuoc va ((dinh doi) OR (dinh moi)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu bach y nang xa hoi. ((hieu viec) or (hieu ve)) sach nuoc va ((dinh doi) OR (dinh moi)) cua tre".
• Adding a wildcard symbol may retrieve word variants: vu bach y nang xa hoi. ((hieu viec) or (hieu ve)) sach nuoc va ((dinh doi) OR (dinh moi)) cua tre*.