Facebook development in coding need some adjustment. It seems the Android Facebook version is not perfectly done.
The problem is, when I type #adsense, it doesn't come out for update about hashtag adsense, instead it comeout the normal group adsense and others.
Facebook developer need to fix this to encourage user to keep on using their application futhermore click on their ads.
When I use twitter with hashtag, it come out properly.
I suggest Facebook make surveys to their users on how to improve Facebook in desktop and app.