Perhaps you should try some spelling variations:
dinh viet » ninh viet, danh viet, trinh viet
cua triet » cua viet, su triet, va triet
tham soc » cham soc, tham nuoc, thai son
so sach » so sanh, bo sach, co sach
va tham » van tham, va cham, va thanh
danh vi » hanh vi, dinh vi, danh di
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, ma hoa, me hoi
soc va » hoc va, loc va, doc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach y nang ((ma hoi) OR (xa hoi)). lieu va tham soc va ((danh vi) or (dinh viet)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach y nang ((ma hoi) OR (xa hoi)). lieu va tham soc va ((danh vi) OR (dinh viet)) cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach y nang ((ma hoi) OR (xa hoi)). lieu va tham soc va ((danh vi) or (dinh viet)) cua triet".
• Adding a wildcard symbol may retrieve word variants: so sach y nang ((ma hoi) OR (xa hoi)). lieu va tham soc va ((danh vi) or (dinh viet)) cua triet*.