How can I search user`s Facebook timeline for a specific post using keyword/post title in 2.5 api?

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PHP

Facebook-API

Hello,

I have an fb app with "user_posts" permission and i want to search user`s timeline for a specific post based on post title/keyword filled by user in a text box.

The app can only make request for v2.5 api of facebook.
So please answer as per v2.5 api recommendation.

What I have tried:

I have tried :

* All public posts: https://graph.facebook.com/search?q=watermelon&type=post
* People: https://graph.facebook.com/search?q=mark&type=user
* Pages: https://graph.facebook.com/search?q=platform&type=page
* Events: https://graph.facebook.com/search?q=conference&type=event
* Groups: https://graph.facebook.com/search?q=programming&type=group
* Places: https://graph.facebook.com/search?q=coffee&type=place¢er=37.76,122.427&distance=1000
* Checkins: https://graph.facebook.com/search?type=checkin

such things but not working with 2.5 api of facebook