Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
cua tre » cua te, cuu tre, cua triet
duc ban » duc tan, duc van, dua ban
sach tu » sach thu, cach tu, sach ty
xuc ban » cuc ban, quoc ban, xuat ban
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
tu nang » tru nang, tu nong, tu nano
anh ve » hanh ve, anh va, anh viet
cua tu » cua tuc, cua su, cua cu
x hoi » xa hoi, o hoi, x ho

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 tu nang x hoi. hieu ve cham ((xuc ban) or (duc ban)) anh ve ((cua tre) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach tu nang x hoi. hieu ve cham ((xuc ban) OR (duc ban)) anh ve ((cua tre) OR (cua tu)).
• Adding a wildcard symbol may retrieve word variants: thu sach tu nang x hoi. hieu ve cham ((xuc ban) or (duc ban)) anh ve ((cua tre) or (cua tu))*.