Perhaps you should try some spelling variations:
ve triet » va trien, su triet
cau phuc » cau truc, chau phu, huu phuc
cay phoi » cap phoi, tay hoi, cay cho
va hanh » van hanh, va thanh, va danh
cau luc » cau truc
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
xay hoi » xa hoi, tay hoi, gay thoi
ky dang » ky nang, ky danh
vi ve » va ve, gi ve, ve ve

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 dang ((xay hoi) OR (cay phoi)). hieu qua ((cau luc) OR (cau phuc)) va hanh vi ve triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky dang ((xay hoi) OR (cay phoi)). hieu qua ((cau luc) or (cau phuc)) va hanh vi ve triet~".
• Adding a wildcard symbol may retrieve word variants: su sach ky dang ((xay hoi) OR (cay phoi)). hieu qua ((cau luc) or (cau phuc)) va hanh vi ve triet*.