Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
ban nuoi » ban nguoi, ban noi, dan nuoi
ban nuoc » ban duoc, ban thuoc, luan nuoc
danh tu » anh tu, doanh thu
va danh » va dinh, va dan, va hanh
so sach » bo sach, co sach, hoc sach
nang xa » nang x, lang xa, nang ma
ly nang » ky nang, ly hang, ly vang
so sanh » do sanh
cua tre » cua te, cuu tre, cua triet
tu 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) OR (so sanh)) ly nang xa hoi. hieu viec ((ban nuoc) or (ban nuoi)) va danh tu cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (so sanh)) ly nang xa hoi. hieu viec ((ban nuoc) OR (ban nuoi)) va danh tu cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sach) OR (so sanh)) ly nang xa hoi. hieu viec ((ban nuoc) or (ban nuoi)) va danh tu cua tre".
• Adding a wildcard symbol may retrieve word variants: ((so sach) OR (so sanh)) ly nang xa hoi. hieu viec ((ban nuoc) or (ban nuoi)) va danh tu cua tre*.