Character Creation: Origin Background

I have chosen 5.5e Core Rules but only the following 4 backgrounds are shown:

Acolyte, Criminal, Sage, Soldier

How do I find the other 12 backgrounds? Do I need to create them as custom backgrounds, if so, how do I do that? 

Thanks

Do you own the Players Handbook on D&D Beyond, or are you creating a character in a campaign that someone has shared that content with you?

Those 4 are the free ones from the Basic Rules/SRD.

Oh, ok. I do own the book but I bought it on Amazon. I guess there is now way to get the other backgrounds without paying extra to DND Beyond then?

Quote from Supergrey >>

Oh, ok. I do own the book but I bought it on Amazon. I guess there is now way to get the other backgrounds without paying extra to DND Beyond then?

The other way would be to join a campaign where someone is sharing it.

The digital D&D Beyond version and the physical version are different products and owning one doesn't automatically give you access to the other.