Perhaps you should try some spelling variations:
thanh doi » thanh loi, thanh moi, thanh do
thanh di » thanh de, thanh do, thanh dinh
tu sach » thu sach, su sach, te sach
cuc ban » cua ban, cac ban, cuu ban
cua tre » cua te, cuu tre, cua triet
sach ly » sach y, sach lo, sach ty
xuc ban » duc ban, quoc ban, xuat ban
va chat » van chat, va phat, cao chat
hieu va » lieu va, hieu qua
ly nang » ky nang, ly hang, ly vang

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 ly nang x ho. hieu va chat ((xuc ban) or (cuc ban)) ((thanh di) OR (thanh doi)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ly nang x ho. hieu va chat ((xuc ban) OR (cuc ban)) ((thanh di) OR (thanh doi)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ly nang x ho. hieu va chat ((xuc ban) or (cuc ban)) ((thanh di) OR (thanh doi)) cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ly nang x ho. hieu va chat ((xuc ban) or (cuc ban)) ((thanh di) OR (thanh doi)) cua tre*.