The Search Cards option can be used to find cards where the front text and/or back text matches the search text. You can search within the current deck, or across all decks.
Tap the Move/Copy button at the bottom of the Cards screen to move or copy all cards from one deck to another deck:
The difference between Move and Copy:
The Export option immediately copies all cards in the current deck to the clipboard. Only the following five columns are copied:
A dialogue box appears when the export is complete.