Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh soc » thanh son, nhanh soc, thanh hoc
ban hanh » ban hang
va thanh » gia thanh, ban thanh, va tinh
cua tre » cua te, cuu tre, dua tren
soc ban » hoc ban, coc ban, so ban
hieu va » lieu va, hieu qua
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.

• If you are trying to use Boolean operators, they must be ALL CAPS: te ((san ky) OR (dan ky)) dang xa hoi. hieu va thanh soc ban hanh vi ((cua tre) OR (cua triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((san ky) OR (dan ky)) dang xa hoi. hieu va thanh soc ban hanh vi ((cua tre) or (cua triet))~".
• Adding a wildcard symbol may retrieve word variants: te ((san ky) OR (dan ky)) dang xa hoi. hieu va thanh soc ban hanh vi ((cua tre) or (cua triet))*.