If it fails to find something I know is there, I normally resort to google.
site:area.autodesk.com/forum <search terms>
That searches all of them, restricting it to specific area such as Max will cut down on the number of results,
Max 2016 (SP1/EXT1)
Win7Pro x64 (SP1). i5-3570K @ 4.4GHz, 8Gb Ram, DX11.
nVidia GTX760 (2GB) (Driver 430.86).