Anytxt does not find words if they have been broken at the end of a line. In a PDF, for example, the word ‘Herstellung’ is broken at the end of the line into ‘Her-’ and ‘stellung’ in the following line.

If I search for “Herstellung”, nothing is found. However, if I search for ‘Her-stellung’, I do find something. In my opinion, this is an error.