Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thien van » thi van
hang cau » hang dau, hang ca, nhung cau
hieu va » lieu va, hieu qua
dinh vi » dinh ve, dinh viet, dinh tri
va dinh » van dinh, va kinh, va tinh
nam xuc » cam xuc, nam xua, nam thuc
sach ly » sach lo, sach ty, sach hay
xuc va » duc va, tuc va, luc 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: su ((sach ly) OR (sach y)) hang cau hoi. ((thien van) OR (hieu va)) nam xuc va dinh vi cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ly) OR (sach y)) hang cau hoi. ((thien van) or (hieu va)) nam xuc va dinh vi cua triet~".
• Adding a wildcard symbol may retrieve word variants: su ((sach ly) OR (sach y)) hang cau hoi. ((thien van) or (hieu va)) nam xuc va dinh vi cua triet*.