2 erasmus girl students, looking for accommodation near Oeiras

We are Polish students of Maritime University, we are going to spend the second semestr in ENIDH (Paco de Arcos) and we are looking for the accommodation for that period of time (Feb-Jul 2017). We are calm, responsible and quiet girls, with no addictions like smoking etc. We can live in double room, two separated single rooms in one flat rented with other people or in a small singleroom flat. We are able to pay around 400euros for both of us (200euros per person). We can live in a nearby locality as only there is a good connection with Paco de Arcos (up to 30-40 minutes of entire journay). Hope we'll find our dream place to live during our Erasmus adventure. Greetings!