Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thai cua » than cua, tai cuc, tri cua
cam duc » cam xuc, cao duc, pham duc
hai cua » dai cua, hoi cua, lai cua
duc ban » duc tan, duc van, dua ban
sach tu » sach thu, cach tu, sach uu
hieu va » lieu va, hieu qua
hang xa » hoang xa, hang va, hang ca
sach ty » sach y, sach thu, xach tay
va cam » va cham, va cac, va cao

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