Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh cat » hanh cac, hanh luat, nhanh cay
su sach » so sach, vu sach
hieu va » lieu va, hieu qua
cam luc » cam xuc, cau luc
va hanh » van hanh, va thanh, va danh
cat cua » chat cua, ca cua, mat cua
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, ma hoa, me hoi
va cam » va cham, va cac, va cao
luc va » duc va, tuc va, loc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach y nang ((ma hoi) OR (xa hoi)). hieu va cam luc va hanh cat cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang ((ma hoi) OR (xa hoi)). hieu va cam luc va hanh cat cua triet".
• Adding a wildcard symbol may retrieve word variants: su sach y nang ((ma hoi) OR (xa hoi)). hieu va cam luc va hanh cat cua triet*.