Facebook Graph API - Place Distance Inaccurate

_x000D_ _x000D_ I am trying to use Facebook Graph API to retrieve a set of places at a certain coordinate. Using the API, I executed the following query: https://graph.facebook.com/search?access_token=APPTOKEN&type=place¢er=3.187501,101.627542&distance=50000&limit=500 Theoretically, this query should return 500 places within 50km of that coordinate. However, it only returned some 15 results that are within the immediate vicinity (say few hundred meters) of that coordinate. I tried changing the distance to 10000, 5000 or even 1000, while tweaking the limit parameter to figures such as 50, 100, 1000 but the total results remain the same. There are certainly other places nearby, i.e. if I change the query's coordinates to the following location which is less than a kilometer away, it returns a whole new result set: https://graph.facebook.com/search?access_token=APPTOKEN&type=place¢er=3.192022,101.625647&distance=50000&limit=500 Can someone please advice if my query is problematic, or that Facebook's Graph API is somehow limiting the distance or total results? Thank you.