Perhaps you should try some spelling variations:
cua triet » su triet, va triet
cua viet » ca viet, hoa viet, cua vat
cham tuc » nham thuc, pham thuc, tham thuc
va hanh » van hanh, va thanh, va danh
va cham » va chat, va tham
sach ky » sach y, sach ty, sach kem
dang xa » dang xay, lang xa, dang ha
hieu va » lieu va, hieu qua
tuc va » thuc va, truc va, tuc xa
sac ky » cac ky, sai 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: su ((sach ky) OR (sac ky)) dang xa hoi. hieu va cham tuc va hanh vi ((cua triet) OR (cua viet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ky) or (sac ky)) dang xa hoi. hieu va cham tuc va hanh vi ((cua triet) OR (cua viet))~".
• Adding a wildcard symbol may retrieve word variants: su ((sach ky) or (sac ky)) dang xa hoi. hieu va cham tuc va hanh vi ((cua triet) OR (cua viet))*.