Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
ban nuoc » ban duoc, ban thuoc, luan nuoc
ban nuoi » ban nguoi, ban noi, dan nuoi
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
va danh » va dinh, va dan, va hanh
tu cua » vu cua
hu cua » vu cua

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

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