Perhaps you should try some spelling variations:
ve triet » su triet
va trien » va truyen, va thiet, va tuyen
van hanh » van thanh, ban hanh, van anh
hanh di » hanh vi, hanh de, hang di
soc van » hoc van, oc van, sac van
va cham » va chat, va tham
dang xa » dang xay, lang xa, dang ha
san ky » sang ky, van ky, ban ky
dan ky » van ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((san ky) OR (dan ky)) dang xa hoi. lieu va cham soc van hanh di ((va trien) or (ve triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((san ky) OR (dan ky)) dang xa hoi. lieu va cham soc van hanh di ((va trien) OR (ve triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((san ky) OR (dan ky)) dang xa hoi. lieu va cham soc van hanh di ((va trien) or (ve triet))*".