Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
quoc ban » quoc bao, quoc lan, quoc quan
sach ty » sach y, sach tu, sach thu
cuu tre » cua tre, cau tren, cau treo
tu sach » thu sach, su sach, te sach
ty hang » ly hang, ty xang, thi hang
xuc ban » duc ban, cuc ban, xuat ban
va cao » va cac, va co, va dao
hang x » nang x, hoang xa, chang xu
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 ty hang x hoi. lieu va cao ((xuc ban) OR (quoc ban)) anh d ((cuu tre) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty hang x hoi. lieu va cao ((xuc ban) OR (quoc ban)) anh d ((cuu tre) OR (su triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty hang x hoi. lieu va cao ((xuc ban) OR (quoc ban)) anh d ((cuu tre) or (su triet))*".