Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
cap phoi » cap cho
ban hanh » ban hang
dai cuu » dai cua, dai huu
ban dan » ban hang, ban quan, gian dan
cuu tre » cua tre, cau tren, cau treo
cam duc » cam xuc, cao duc, pham duc
hieu ve » hieu va, hieu van
ky dang » ky nang, ky danh
y dang » 2 dang, _ dang, b dang
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: thu sach ((y dang) or (ky dang)) cap phoi. hieu ve cam duc ((ban dan) or (ban hanh)) dai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((y dang) OR (ky dang)) cap phoi. hieu ve cam duc ((ban dan) OR (ban hanh)) dai cuu tre.
• Adding a wildcard symbol may retrieve word variants: thu sach ((y dang) or (ky dang)) cap phoi. hieu ve cam duc ((ban dan) or (ban hanh)) dai cuu tre*.