Perhaps you should try some spelling variations:
so sach » so sanh, bo sach, hoc sach
co sach » bo sach, cuon sach, hoc sach
xang xa » lang xa, mang xa, ang xa
hieu ve » hieu va, hieu van
cac xuc » cam xuc, cac nuoc, chat xuc
danh vi » dinh vi, danh di, danh va
ve cac » va cac, vien cac
xuc va » duc va, tuc va, luc va
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: ((so sach) or (co sach)) ty xang xa hoi. hieu ve cac xuc va ((danh vi) OR (hanh vi)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (co sach)) ty xang xa hoi. hieu ve cac xuc va ((danh vi) OR (hanh vi)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sach) or (co sach)) ty xang xa hoi. hieu ve cac xuc va ((danh vi) OR (hanh vi)) cua te".
• Adding a wildcard symbol may retrieve word variants: ((so sach) or (co sach)) ty xang xa hoi. hieu ve cac xuc va ((danh vi) OR (hanh vi)) cua te*.