Perhaps you should try some spelling variations:
bang cach » bang cac, ban sach, ban mach
cach thoi » cac thoi, cach thuc, cach noi
van cham » van chat, van tham, va cham
cham xuc » cam xuc, chat xuc, cham soc
thu sach » thuat sach, thuoc sach, thu hoach
hieu van » hieu va, thien van, lieu va
va danh » va dinh, va dan, dia danh
va hanh » van hanh, va thanh, ban hanh
tu sach » su sach, te sach, tu cach
ky bang » ky nang, ky dang, ke bang
cua tre » cua te, cuu tre, cua triet
vi cua » vai cua, di cua

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) or (thu sach)) ky bang cach thoi. hieu van cham xuc ((va hanh) or (va danh)) vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) ky bang cach thoi. hieu van cham xuc ((va hanh) OR (va danh)) vi cua tre.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu sach)) ky bang cach thoi. hieu van cham xuc ((va hanh) or (va danh)) vi cua tre*.