Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh vai » hanh vi, hanh va, hanh tai
hoc sach » hoc sinh, hoc cac, hoc anh
hieu va » lieu va, hieu qua
sach ky » sac ky, sach y, sach ty
va hanh » van hanh, va thanh, va danh
nang xa » lang xa, nang ma, mang xa
vai cua » dai cua, hai cua, lai cua
cac bo » bac bo, cac co
cac lo » cac lop, cac co, cac ho

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: hoc sach ky ((nang xa) OR (nang x)) hoi. hieu va ((cac lo) OR (cac bo)) va hanh vai cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc sach ky ((nang xa) or (nang x)) hoi. hieu va ((cac lo) OR (cac bo)) va hanh vai cua triet~".
• Adding a wildcard symbol may retrieve word variants: hoc sach ky ((nang xa) or (nang x)) hoi. hieu va ((cac lo) OR (cac bo)) va hanh vai cua triet*.