Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
thu sach » tu sach, thuat sach, thu hoach
va chat » van chat, va phat, cao chat
va tham » van tham, va cham, va thanh
va danh » va dinh, va dan, va hanh
danh vi » hanh vi, dinh vi, danh di
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
soc va » hoc va, loc va, doc va
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: ((thu sach) or (thuoc sach)) y nang x ho. lieu ((va chat) or (va tham)) soc va danh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (thuoc sach)) y nang x ho. lieu ((va chat) OR (va tham)) soc va danh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (thuoc sach)) y nang x ho. lieu ((va chat) or (va tham)) soc va danh vi cua tre*.