There is not a filter for it as of now, but from the videos in the response,
1) Do a videos.list call with id = comma separated list of all videoIds returned in your first call.
2) You can filter them by contentDetails.regionRestriction
Question
Is there way to filter search results for videos that can be played from a certain country in youtube iframe api v3?
This call is not working:
search.setRegionCode("TR");
Solution
There is not a filter for it as of now, but from the videos in the response,
1) Do a videos.list call with id = comma separated list of all videoIds returned in your first call.
2) You can filter them by contentDetails.regionRestriction