Perhaps you should try some spelling variations:
ban danh » ban doanh, ban hanh, ban dan
hoi cua » hoi chuc
hai cua » thai cua, dai cua, lai cua
xuc ban » duc ban, cuc ban, quoc ban
hieu va » lieu va, hieu qua
sach ky » sach y, sach ty, sach kem
lang xa » lang ha, dang xay, lang van
va cam » va cham, va cac, va cao
sac ky » cac ky, sai ky

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 ky) or (sac ky)) lang xa hoi. hieu va cam xuc ban danh ((hai cua) OR (hoi cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sac ky)) lang xa hoi. hieu va cam xuc ban danh ((hai cua) OR (hoi cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) or (sac ky)) lang xa hoi. hieu va cam xuc ban danh ((hai cua) OR (hoi cua)) tre".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sac ky)) lang xa hoi. hieu va cam xuc ban danh ((hai cua) OR (hoi cua)) tre*.