Perhaps you should try some spelling variations:
lieu van » hieu van, sieu van, lieu nano
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
cau luc » cau truc, cau phuc
danh vi » dinh vi, danh di, danh va
cuu tre » cua tre, cau tren, cau treo
luc va » duc va, tuc va, loc va

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 ky tang xa hoi. ((lieu van) OR (lieu va)) cau luc va ((danh vi) OR (hanh vi)) cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ky tang xa hoi. ((lieu van) OR (lieu va)) cau luc va ((danh vi) or (hanh vi)) cuu tre~".
• Adding a wildcard symbol may retrieve word variants: so sach ky tang xa hoi. ((lieu van) OR (lieu va)) cau luc va ((danh vi) or (hanh vi)) cuu tre*.