Perhaps you should try some spelling variations:
loc ban » lo ban, hoc ban, hoc bang
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 va, hieu van
coc ban » co ban, cac ban, hoc ban
di cua » dai cua, doi cua, de cua
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
ve cac » va cac, vien cac
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 (lang xa)) hoi. hieu ve cac ((loc ban) OR (coc ban)) hanh di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky ((nang xa) OR (lang xa)) hoi. hieu ve cac ((loc ban) OR (coc 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 cac ((loc ban) OR (coc ban)) hanh di cua te*".