Thank you very much for your support!
I have read everything from you carefully.
Now everything is working as expected.
For me personally, I have noted the following as a brief summary:
With CTRL + ENTER and option “Multiline” in the “Find”-window, it is possible to search for a cohesive search term over several lines.
Simple formulation for valid examples for CTRL + ENTER:
– Example1: 1,2,3,4,5 –> Search for: 2,3,4 (and not for 2,4) –> DO NOT press CTRL+ENTER after 4!
– Example2: abc def, ghi jkl, mno pqr –> Search for: (1)def (2)ghi jkl (3)mno –> after mno do NOT press CTRL+ENTER anymore!