Perhaps you should try some spelling variations:
dinh chuc » dinh chi, dinh thuy, dinh cuu
thu sach » tu sach, thuat sach, thuoc sach
van dinh » van minh, van dich, va dinh
va triet » va trien, ve triet, cua triet
xuc van » duc van, luc van, vuc van
y nang » ky nang, ly nang, v nang
ve cac » vien cac
x hoi » xa hoi, o hoi, x ho
thiet » thieu

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 x hoi. hieu ((ve cac) OR (va cac)) xuc van dinh chuc ((va triet) or (va thiet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y nang x hoi. hieu ((ve cac) OR (va cac)) xuc van dinh chuc ((va triet) OR (va thiet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach y nang x hoi. hieu ((ve cac) OR (va cac)) xuc van dinh chuc ((va triet) or (va thiet))".
• Adding a wildcard symbol may retrieve word variants: thu sach y nang x hoi. hieu ((ve cac) OR (va cac)) xuc van dinh chuc ((va triet) or (va thiet))*.