Trello – the shortcut key to the main search box in Trello

We at Trello try to make the top search bar only return things that are "yours". To search a particular board you're looking at, it's better to use Search and Filter Cards.

They should be given the same max height, i.e. they should be the same length if they would otherwise go off the board. If not, it's a bug.

There's a known bug that you may be experiencing. If you are zoomed out and click the 'Add card', then click off, it can shorten the list.

Most of this weirdness will go away with the new card composer, though. https://trello.com/c/pRlmLRWS