Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
cau phuc » cau truc, chau phu, huu phuc
cau luc » cau truc
hanh di » hanh vi, hanh de, hang di
va hanh » van hanh, va thanh, va danh
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
cau xuc » cam xuc, cau truc, chat xuc
nang ma » tang ma, sang ma, nang cao
ma hoi » mai hoi, xa hoi, ma hoa
di cua » dai cua, doi cua, de 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: tu sach ky nang ma hoi. hieu van ((cau xuc) OR (((cau luc) OR (cau phuc)))) va hanh di cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang ma hoi. hieu van ((cau xuc) or (((cau luc) OR (cau phuc)))) va hanh di cua triet~".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang ma hoi. hieu van ((cau xuc) or (((cau luc) OR (cau phuc)))) va hanh di cua triet*.