Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh dai » hanh tai, hanh dao, vanh dai
su sach » so sach, vu 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, hieu qua
va cau » van cau, va cac, va dau
xuc va » duc va, luc va, xac va
tuc va » thuc va, truc va, tuc xa

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 lang xa hoi. hieu va cau ((xuc va) OR (tuc va)) hanh dai cua triet~.
• Adding a wildcard symbol may retrieve word variants: su sach ky lang xa hoi. hieu va cau ((xuc va) or (tuc va)) hanh dai cua triet*.