Perhaps you should try some spelling variations:
cuu ban » cuu van, cua ban, cuu san
xuc ban » duc ban, cuc ban, quoc ban
sach ky » sac ky, sach y, sach kem
va cham » va chat, va tham
hieu va » lieu va, hieu qua
lang xa » lang ha, dang xay, lang van
sach ty » sach y, sach tu, sach thu
vi cua » vai cua, di cua
cua te » cua tu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((sach ky) OR (sach ty)) lang xa hoi. hieu va cham ((xuc ban) or (cuu ban)) hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((sach ky) OR (sach ty)) lang xa hoi. hieu va cham ((xuc ban) OR (cuu ban)) hanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((sach ky) OR (sach ty)) lang xa hoi. hieu va cham ((xuc ban) or (cuu ban)) hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: hoc ((sach ky) OR (sach ty)) lang xa hoi. hieu va cham ((xuc ban) or (cuu ban)) hanh vi cua te*.