Perhaps you should try some spelling variations:
ban banh » ban hanh, ban anh, ban danh
so sach » so sanh, bo sach, co sach
ky dang » ky danh
xay hoi » xa hoi, tay hoi, cay phoi
hieu ve » hieu va, hieu van
xuc ban » duc ban, cuc ban, quoc ban
hai cua » thai cua, dai cua, lai cua
hoi cua » hoi chuc
ve cam » ve cham, ve cac, va cam

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 ((ky dang) or (ky nang)) xay hoi. hieu ve cam xuc ban banh ((hai cua) or (hoi cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ((ky dang) OR (ky nang)) xay hoi. hieu ve cam xuc ban banh ((hai cua) OR (hoi cua)) triet.
• Adding a wildcard symbol may retrieve word variants: so sach ((ky dang) or (ky nang)) xay hoi. hieu ve cam xuc ban banh ((hai cua) or (hoi cua)) triet*.