Perhaps you should try some spelling variations:
ban khanh » ban hanh, ban thanh, van khanh
khanh hoa » thanh hoa, hang hoa
sach kho » bach khoa, sach dao, sach nha
kho tang » cao tang
su triet » su viet, su tien, ve triet
so sach » so sanh, bo sach, co sach
tang xa » trang xa, tang ma, lang xa
ve cham » va cham, vu cham, ve chim
ve chat » va chat, van chat
tu ban » thu ban, te ban
hoa su » hoa lu, hoa si, hoa du

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 kho tang xa hoi. hieu ((ve cham) or (ve chat)) tu ban khanh hoa su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach kho tang xa hoi. hieu ((ve cham) OR (ve chat)) tu ban khanh hoa su triet.
• Adding a wildcard symbol may retrieve word variants: so sach kho tang xa hoi. hieu ((ve cham) or (ve chat)) tu ban khanh hoa su triet*.