Perhaps you should try some spelling variations:
dang xay » dang van, van xay
ban hanh » ban hang
lang xa » lang ha, lang van
hieu ve » hieu va, hieu van
cac coc » cac cuoc, cac co, cac toc
coc ban » co ban, cac ban, hoc ban
hanh di » hanh vi, hanh de, hang di
te san » te ban, ke san, tu san
san ky » sang ky, van ky, dan ky
ve cac » va cac, vien cac
di cua » dai cua, doi cua, de 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: te san ky ((dang xay) or (lang xa)) hoi. hieu ve cac coc ban hanh di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te san ky ((dang xay) OR (lang xa)) hoi. hieu ve cac coc ban hanh di cua te.
• Adding a wildcard symbol may retrieve word variants: te san ky ((dang xay) or (lang xa)) hoi. hieu ve cac coc ban hanh di cua te*.