Perhaps you should try some spelling variations:
nhanh thai » nhanh thi, nhanh thanh, nhanh thang
ban nhanh » ban hanh, ban thanh, ban nhan
xay phoi » cay phoi, cap phoi, tay hoi
thai cua » than cua, tai cuc, tri cua
tu sach » thu sach, su sach, te sach
ky dang » ky nang
ky danh » ky anh
hieu ve » hieu va, hieu van
cam duc » cam xuc, cao duc, pham duc
duc ban » duc tan, duc van, dua ban
cua tre » cua te, cuu tre, cua triet
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: tu sach ((ky dang) OR (ky danh)) xay phoi. hieu ve cam duc ban nhanh thai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((ky dang) OR (ky danh)) xay phoi. hieu ve cam duc ban nhanh thai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ((ky dang) OR (ky danh)) xay phoi. hieu ve cam duc ban nhanh thai cua tre*.