Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
cua triet » cua viet, su triet, va triet
thu sach » tu sach, thuoc sach, thu hoach
hanh via » hanh vi, hanh va, anh va
va hanh » van hanh, va thanh, va danh
via cua » gia cua, gian cua, giau cua
y nang » ky nang, ly nang, v nang
va cao » va co, va dao, va bao
x hoi » xa hoi, o hoi, x ho

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: ((thu sach) OR (thuat sach)) y nang x hoi. hieu ((va cao) OR (va cac)) duc va hanh via cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) OR (thuat sach)) y nang x hoi. hieu ((va cao) or (va cac)) duc va hanh via cua triet~".
• Adding a wildcard symbol may retrieve word variants: ((thu sach) OR (thuat sach)) y nang x hoi. hieu ((va cao) or (va cac)) duc va hanh via cua triet*.