I have an Anki deck with multiple tags associated with it. I wanted to find a way to make a deck composed of certain tags.

Suppose I wanted to study for a test that covers chapters 1 and 2 using a deck called History. The deck has cards that either have "ch01" or "ch02" as a tag, as well as other chapters mixed in.

Here's how to make a filtered deck.

Anki (Desktop)

1. Open Anki.
2. Go to Tools > Create Filtered Deck.
3. In Search, the deck has already been selected (deck:"Default"). Change it to the appropriate deck: in my case, it will be "deck:"History".
4. Next, specify which tags to search for and add them in Search. In my example, I would now add and ("tag:ch01" or "tag:ch02"). The or operator will find cards that have either one tag or the other.
5. Check that my query is correct. In the end I have "deck:History" and ("tag:ch01" or "tag:ch02") as my Search input.
6. Click Build. Now the filtered deck is ready.

AnkiDroid (Android)

1. Open AnkiDroid.
2. Tap the menu icon in the top right corner, then tap Create filtered deck.
3. The Options screen appears. Tap Search and enter your query. Change it to the appropriate deck: in my case, it will be "deck:"History".
4. Next, specify which tags to search for and add them in Search. In my example, I would now add and ("tag:ch01" or "tag:ch02"). The or operator will find cards that have either one tag or the other.
5. Check that my query is correct. In the end I have "deck:History" and ("tag:ch01" or "tag:ch02") as my Search input.
6. Tap the Back button in the top left corner. Now the filtered deck is ready.