Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
te sach » toc sach
mai hoi » mai khoi, dai hoi, lai hoi
hieu ve » hieu van
hieu va » lieu va, hieu qua
cac xuc » cam xuc, cac nuoc, chat xuc
va hanh » van hanh, va thanh, va danh
y nang » ky nang, ly nang, v nang
xuc va » duc va, tuc va, luc va
vi cua » vai cua, di cua

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: te sach y nang ((xa hoi) OR (mai hoi)). ((hieu ve) OR (hieu va)) cac xuc va hanh vi cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang ((xa hoi) or (mai hoi)). ((hieu ve) OR (hieu va)) cac xuc va hanh vi cua triet~".
• Adding a wildcard symbol may retrieve word variants: te sach y nang ((xa hoi) or (mai hoi)). ((hieu ve) OR (hieu va)) cac xuc va hanh vi cua triet*.