Hi!
Thank you very much for the details, it helps me a lot.
I have found one misconfiguration, that the Index Table engine was not selected for the media attachment search, I have corrected that here: https://i.imgur.com/yMcT06q.png
Still I am not quite getting results for the string “PHG-FG07.50”, but I do get the correct ones for searching partials of this string together “PHP FG07 50”. My guess is, that there might be a difference inbetween how this word looks and how it’s processed (maybe there is some sort of gibberish or empty strings between them etc..), otherwise this should be indexed as a single keyword as well.
Can you please add temporary FTP details? I would like to degug the index process, to see what the PDF parser was able to extract from the PDF texts. I believe the information is there, but for some reason it is not indexed correctly.