Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
su cach » su sach, tu cach, su cac
hai cua » thai cua, hoi cua, lai cua
duc ban » duc tan, duc van, dua ban
cam duc » cam xuc, cao duc, pham duc
cach tu » cach thuc
hieu ve » hieu va, hieu van
hanh va » hang va, hanh vi
hanh xa » hanh ma, hanh xu, canh xa
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: su cach tu ((hanh xa) or (hanh va)) hoi. hieu ve cam duc ban thanh ((hai cua) OR (dai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su cach tu ((hanh xa) OR (hanh va)) hoi. hieu ve cam duc ban thanh ((hai cua) OR (dai cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su cach tu ((hanh xa) or (hanh va)) hoi. hieu ve cam duc ban thanh ((hai cua) OR (dai cua)) tre".
• Adding a wildcard symbol may retrieve word variants: su cach tu ((hanh xa) or (hanh va)) hoi. hieu ve cam duc ban thanh ((hai cua) OR (dai cua)) tre*.