Perhaps you should try some spelling variations:
cua triet » su triet, va triet
van hanh » van thanh, ban hanh, van anh
cua viet » ca viet, hoa viet, cua vat
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va
cao xuc » cam xuc, cao duc, cao suc
xuc van » duc van, luc van, xuc ban

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: tu sach ky lang xa hoi. ((hieu va) OR (hieu qua)) cao xuc van hanh vi ((cua triet) OR (cua viet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky lang xa hoi. ((hieu va) or (hieu qua)) cao xuc van hanh vi ((cua triet) OR (cua viet))~".
• Adding a wildcard symbol may retrieve word variants: tu sach ky lang xa hoi. ((hieu va) or (hieu qua)) cao xuc van hanh vi ((cua triet) OR (cua viet))*.