Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van hanh » van thanh, ban hanh, van anh
sach ty » sach tu, sach thu, xach tay
dang xa » dang xay, lang xa, dang ha
qua hai » qua hoat
hai tuc » thai tuc, hai cuc, thai thuc
tuc van » thuc van, truc van, tuc va
vi cua » vai cua, di cua

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: co ((sach ty) OR (sach y)) dang xa hoi. hieu qua hai tuc van hanh vi cua triet~.
• Adding a wildcard symbol may retrieve word variants: co ((sach ty) or (sach y)) dang xa hoi. hieu qua hai tuc van hanh vi cua triet*.