Perhaps you should try some spelling variations:
ban hanh » ban hang
hieu ve » hieu va, hieu van
nang xa » nang x, mang xa, ang xa
hanh di » hanh vi, hanh de, hang di
nang ma » tang ma, sang ma, nang cao
loc ban » lo ban, hoc ban, coc ban
lang xa » lang ha, dang xay, lang van
cac loc » cac lop, cac toc, cac hoc
di cua » dai cua, doi cua, de cua
te sac » te sach, te cac, te san
ve cac » va cac, vien cac
sac ky » cac ky, sai ky
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 sac ky ((((nang xa) OR (nang ma))) or (lang xa)) hoi. hieu ve cac loc ban hanh di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky ((((nang xa) OR (nang ma))) OR (lang xa)) hoi. hieu ve cac loc ban hanh di cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky ((((nang xa) OR (nang ma))) or (lang xa)) hoi. hieu ve cac loc ban hanh di cua te*".