Engine stops while stepping on the accelerator?

This only happens when I come from my long travel like 1-2 hours. I reach this upward part of a road and when I tried to pass/over-take a car while accelerating the engine suddenly stops and I wait for about 1-2 min then I start the engine again, already happened 3 times. Nothing lights up on the dash board and this does not happen when I use my car for my daily commute passing through the same upward road. Any suggestions? Thanks.
Ford Focus 2009 AT 1.8l

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