Perhaps you should try some spelling variations:
banh thai » anh thai, ban thai, nhanh thai
hieu van » hieu va, thien van, lieu va
thai cua » than cua, tai cuc, tri cua
cay phoi » tay hoi, cay cho, gap phoi
ban banh » ban hanh, ban anh, ban danh
cap phoi » cap cho
tu sach » thu sach, su sach, te sach
duc ban » duc tan, duc van, dua ban
cam duc » cam xuc, cao duc, pham duc
cua tre » cua te, cuu tre, cua triet
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va
ky danh » ky anh, ky dang

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky danh ((cay phoi) OR (cap phoi)). ((hieu ve) or (hieu van)) cam duc ban banh thai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky danh ((cay phoi) OR (cap phoi)). ((hieu ve) OR (hieu van)) cam duc ban banh thai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky danh ((cay phoi) OR (cap phoi)). ((hieu ve) or (hieu van)) cam duc ban banh thai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ky danh ((cay phoi) OR (cap phoi)). ((hieu ve) or (hieu van)) cam duc ban banh thai cua tre*.