Perhaps you should try some spelling variations:
nhieu viec » nhien viet
hieu viec » hieu ve, sieu viet, hieu hien
nang xa » nang x, lang xa, nang ma
hanh va » hang va, hanh vi
vu dan » vu dang, va dan, cu dan
dan ky » van ky
luc va » tuc va, loc va
va cua » va chua, via cua, ca cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu dan ky nang xa hoi. ((hieu viec) or (nhieu viec)) cua ((luc va) OR (duc va)) hanh va cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu dan ky nang xa hoi. ((hieu viec) OR (nhieu viec)) cua ((luc va) OR (duc va)) hanh va cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu dan ky nang xa hoi. ((hieu viec) or (nhieu viec)) cua ((luc va) OR (duc va)) hanh va cua te*".