Perhaps you should try some spelling variations:
trinh viet » ninh viet, trinh vat
cua triet » cua viet, va triet
su triet » su viet, su tien, ve 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
nang ma » tang ma, sang ma, nang cao
danh vi » hanh vi, dinh vi, danh di
y nang » ky nang, ly nang, v nang
soc va » hoc va, loc va, doc va
ma hoi » mai hoi, xa hoi, ma hoa

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. lieu va tham soc va ((danh vi) or (trinh viet)) ((cua triet) OR (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach y nang ma hoi. lieu va tham soc va ((danh vi) OR (trinh viet)) ((cua triet) OR (su triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach y nang ma hoi. lieu va tham soc va ((danh vi) or (trinh viet)) ((cua triet) OR (su triet))*".