Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
hai cua » thai cua, dai cua, hoi cua
lai cua » dai cua, lai chau, thai cua
xuc ban » duc ban, cuc ban, quoc ban
hieu va » lieu va, hieu qua
sach ty » sach tu, sach thu, xach tay
xang co » nang co, lang co, tang co
va cam » va cham, va cac, va cao
co loi » co hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach ty) OR (sach y)) xang co loi. hieu va cam xuc ban thanh ((lai cua) or (hai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ty) OR (sach y)) xang co loi. hieu va cam xuc ban thanh ((lai cua) OR (hai cua)) tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ty) OR (sach y)) xang co loi. hieu va cam xuc ban thanh ((lai cua) or (hai cua)) tre*".