Perhaps you should try some spelling variations:
ban hanh » ban hang
cac loc » cac lop, cac toc, cac hoc
nang xa » nang x, nang ma, mang xa
hanh di » hanh vi, hanh de, hang di
lang xa » lang ha, dang xay, lang van
hieu ve » hieu van
loc ban » lo ban, hoc ban, coc ban
hieu va » lieu va, hieu qua
te sac » te sach, te cac, te san
di cua » dai cua, doi cua, de cua
cua te » cua tu
sac ky » cac ky, sai ky

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 (lang xa)) hoi. ((hieu ve) OR (hieu va)) 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 (lang xa)) hoi. ((hieu ve) OR (hieu va)) cac loc ban hanh di cua te".
• Adding a wildcard symbol may retrieve word variants: te sac ky ((nang xa) OR (lang xa)) hoi. ((hieu ve) OR (hieu va)) cac loc ban hanh di cua te*.