Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
dang xa » dang xay, dang ha, dang va
lang xa » lang ha, dang xay, lang van
qua cam » qua cham, qua cac, qua ca
xuc va » tuc va, luc va, xac 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 ky ((dang xa) OR (lang xa)) hoi. hieu qua cam ((xuc va) OR (duc va)) hanh vi cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky ((dang xa) or (lang xa)) hoi. hieu qua cam ((xuc va) OR (duc va)) hanh vi cua triet~".
• Adding a wildcard symbol may retrieve word variants: su sach ky ((dang xa) or (lang xa)) hoi. hieu qua cam ((xuc va) OR (duc va)) hanh vi cua triet*.