Perhaps you should try some spelling variations:
sach kem » hanh kem
hai cua » thai cua, dai cua, hoi cua
anh hai » lanh hai, manh hai, anh thai
cuc ban » cua ban, cac ban, cuu ban
xuc ban » duc ban, quoc ban, xuat ban
cua tre » cua te, cuu tre, cua triet
hieu va » lieu va, hieu qua
lang xa » lang ha, dang xay, lang van
sai ky » sac ky
va cao » va cac, va co, va dao

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 kem) or (sai ky)) lang xa hoi. hieu va cao ((xuc ban) OR (cuc ban)) anh hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach kem) OR (sai ky)) lang xa hoi. hieu va cao ((xuc ban) OR (cuc ban)) anh hai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach kem) or (sai ky)) lang xa hoi. hieu va cao ((xuc ban) OR (cuc ban)) anh hai cua tre*".