FilteredStream is a public stream. You will never get any protected Tweets from it.
The only way to get protected Tweets is to use the UserStream and you will therefore be limited to the Tweets created by you, your followers or the people you follow.
Also please note that even if you use the FilteredStream and use a track that is too large (e.g. hello), you might go beyond the 1% cap of the Streaming APIs.
This cap is currently between 4 and 6 millions tweets per day. At such point you will also loose Tweets.
Linvi
The only way to get protected Tweets is to use the UserStream and you will therefore be limited to the Tweets created by you, your followers or the people you follow.
Also please note that even if you use the FilteredStream and use a track that is too large (e.g. hello), you might go beyond the 1% cap of the Streaming APIs.
This cap is currently between 4 and 6 millions tweets per day. At such point you will also loose Tweets.
Linvi