I download lots of free books and import them into calibre and add to my android tablet.
A lot of them I find I don't want to keep after reading, so delete from android and also calibre too.
I used to just type the books name into calibre and it appeared instantly on the screen for me too press delete. Sometimes before I had finished typing the name.
If there were 2 or 3 books similar title it still just showed them.
That was great.
However now I find it highlights odd books all through my booklist so I have to scroll the whole list to delete till I find it!
Sometimes it won't even find the book.
What am I missing?