Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
va hanh » van hanh, va thanh, va danh
hanh di » hanh vi, hanh de, hang di
va cau » van cau, va dau, va cao
di cua » dai cua, doi cua, de cua

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang xa hoi. lieu ((va cau) OR (va cac)) duc va hanh di cua triet~".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang xa hoi. lieu ((va cau) OR (va cac)) duc va hanh di cua triet*.