1° I type/paste some text (small, maximum a page)
2° Assign to this text/note some keywords (maybe 10)
Should be able to retrieve needed note by combination of keywords.
About 10 or 15 years ago I was using DOS-based SquareNote,
loved it, was using it a long time, then bad guys stole my PC,
and I have never recovered from it. (softwarewise )
Using at the moment NoteCenter, but to stay organised
one has to create a lot of folders, not my idea of fun.