Perhaps you should try some spelling variations:
nhanh thai » nhanh thi, nhanh thanh, nhanh thang
van nhanh » van thanh, van hanh, van khanh
thai cua » than cua, tai cuc, tri cua
cap phoi » cap cho
cam duc » cam xuc, cao duc, pham duc
duc van » duc va, duc tan, duc manh
tu sach » thu sach, su sach, te sach
hieu ve » hieu va, hieu van
ky danh » ky anh
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 nang))) or (ky danh)) cap phoi. hieu ve cam duc van nhanh thai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((((ky dang) OR (ky nang))) OR (ky danh)) cap phoi. hieu ve cam duc van nhanh thai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((((ky dang) OR (ky nang))) or (ky danh)) cap phoi. hieu ve cam duc van nhanh thai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ((((ky dang) OR (ky nang))) or (ky danh)) cap phoi. hieu ve cam duc van nhanh thai cua tre*.