Police say the incident was reported shortly after midnight last night, Wednesday, September 21.
A spokeswoman said the men forced their way into a property in Maryville Court and demanded money before making off with two mobile phones and a purse with a small amount of cash.
Detective Sergeant Mason said: “The three females have been left shaken by this incident and we are keen to find those responsible. We believe they made off from the house in a small, grey car.
“We would like to hear from anyone who witnessed this vehicle in the local area or anyone who has information which may assist our investigation.
“We can be contacted at Musgrave Street Police Station on 101, quoting ref: 12 210916.”
Anyone wishing to speak to police can contact Musgrave Station on 101, quoting reference number 12 on 21/09/16.
Or if you would prefer to provide information without giving your details you can contact the independent Crimestoppers charity anonymously on 0800 555 111.