Perhaps you should try some spelling variations:
cua triet » su triet, va triet
cua viet » ca viet, hoa viet, cua vat
hieu van » hieu va, thien van, lieu va
van cham » van chat, van tham, va cham
danh vi » hanh vi, dinh vi, danh di
te sach » toc sach
sach vu » sach va, sach tu, sach uu
nang xa » nang x, lang xa, nang ma
vu nang » vuc nang, va nang, vu dang
tuc va » thuc va, truc va, tuc xa
xuc va » duc va, luc va, xac va

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 sach vu nang xa hoi. hieu van cham ((xuc va) OR (tuc va)) danh vi ((cua triet) OR (cua viet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach vu nang xa hoi. hieu van cham ((xuc va) or (tuc va)) danh vi ((cua triet) OR (cua viet))~".
• Adding a wildcard symbol may retrieve word variants: te sach vu nang xa hoi. hieu van cham ((xuc va) or (tuc va)) danh vi ((cua triet) OR (cua viet))*.