to answer your question we need further information from you.
The point of departure is that a person who physically exclusively performs his/her job functions in Denmark is comprised by Danish social security rules (etc. Unemployment benefits).
So first of all, you have to live and work in Denmark to become member of an A-kasse. You do not write where you live now.
And When you live in Denmark you have to be member for one 1 year of an A-kasse before you are entitled to get unemployment benefits.
Besides this you have to have been working in Denmark also for one year, or if you study in Denmark you have to complete study of 3 semester.
It is under no circumstances enough that you have been in Denmark seeking job, and if you have been studying in Denmark in 2013 it is too late now to use the special rules for new graduates here in Denmark.
Please comment this post if you have further questions.