Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thu sach » tu sach, thuat sach, thuoc sach
ly nang » ky nang, ly hang, ly vang
va chat » van chat, va phat, cao chat
va tham » van tham, va cham, va thanh
va danh » va dinh, va dan, va hanh
danh vi » hanh vi, dinh vi, danh di
y nang » ky nang, v nang, may nang
soc va » hoc va, loc va, doc va
vi cua » vai cua, di cua

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

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