Perhaps you should try some spelling variations:
so sach » bo sach, co sach, hoc sach
so sanh » do sanh
van anh » van thanh, tuan anh, van minh
tuc van » thuc van, truc van, tuc va
va cao » va cac, va co, va dao
anh vi » hanh vi, anh va, anh ve
ve cai » va cai, ve cac, ve tai
ang xa » lang xa, mang xa, dang xay
ty ang » ty xang, ty hang, ty anh
vi hoa » voi hoa, vi hoc, va hoa

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (so sanh)) ty ang xa hoi. hieu ((ve cai) OR (va cao)) tuc van anh vi hoa viet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sach) OR (so sanh)) ty ang xa hoi. hieu ((ve cai) or (va cao)) tuc van anh vi hoa viet~".
• Adding a wildcard symbol may retrieve word variants: ((so sach) OR (so sanh)) ty ang xa hoi. hieu ((ve cai) or (va cao)) tuc van anh vi hoa viet*.