Perhaps you should try some spelling variations:
sach thu » sach thue, sach thieu, sach tham
duc ban » duc tan, duc van, dua ban
xuc ban » cuc ban, quoc ban, xuat ban
ve cham » va cham, ve chat, vu cham
sach tu » cach tu, sach ty, sach uu
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
anh le » manh le, oanh le, anh ve
le cua » ly cua
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: tu ((sach tu) or (sach thu)) nang x hoi. hieu ve cham ((xuc ban) OR (duc ban)) anh le cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach tu) OR (sach thu)) nang x hoi. hieu ve cham ((xuc ban) OR (duc ban)) anh le cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach tu) or (sach thu)) nang x hoi. hieu ve cham ((xuc ban) OR (duc ban)) anh le cua tre".
• Adding a wildcard symbol may retrieve word variants: tu ((sach tu) or (sach thu)) nang x hoi. hieu ve cham ((xuc ban) OR (duc ban)) anh le cua tre*.