Perhaps you should try some spelling variations:
thanh de » hanh de, thanh ve, thanh do
va chat » van chat, va phat, cao chat
cuc ban » cua ban, cac ban, cuu ban
xuc ban » duc ban, quoc ban, xuat ban
tu sach » thu sach, su sach, tu cach
hieu va » lieu va, hieu qua
ly nang » ky nang, ly hang, ly vang
te sach » toc sach
cua tre » cua te, cuu tre, cua triet
de cua » le cua, te cua, dieu 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 (te sach)) ly nang x ho. hieu va chat ((xuc ban) or (cuc ban)) thanh de cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) ly nang x ho. hieu va chat ((xuc ban) OR (cuc ban)) thanh de cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (te sach)) ly nang x ho. hieu va chat ((xuc ban) or (cuc ban)) thanh de cua tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (te sach)) ly nang x ho. hieu va chat ((xuc ban) or (cuc ban)) thanh de cua tre*.