Perhaps you should try some spelling variations:
so sach » so sanh, bo sach, co sach
ly hang » ly quang
hieu ve » hieu va, hieu van
cam luc » cam xuc, cau luc
han tai » hang tai, nhan tai, van tai
cuc tre » cua tre, cuu tre, cuc thue
duc tre » duoc tren, duc tien
y hang » ty hang, yu hang, _ hang
ve cam » ve cham, ve cac, va cam
luc va » duc va, tuc va, loc va
va han » va phan, van han, va hanh

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 ((y hang) OR (ly hang)) xa hoi. hieu ve cam luc va han tai ((cuc tre) OR (duc tre))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ((y hang) or (ly hang)) xa hoi. hieu ve cam luc va han tai ((cuc tre) OR (duc tre))~".
• Adding a wildcard symbol may retrieve word variants: so sach ((y hang) or (ly hang)) xa hoi. hieu ve cam luc va han tai ((cuc tre) OR (duc tre))*.