title: Flutter: Search through text data from Firestore
body: <p>I want to implement a search feature in my Flutter app. The text data is stored in Firestore. </p>
  
  <p>Now I'm considering an impractical solution: downloading the whole collection (which is a plain text) and then somehow search through it with Dart code. </p>
  
  <p>Is there a better way to do search in Flutter/Firestore? Can I use Cloud Functions to do that? And if there's no better way, how to search through content with Dart in Flutter? </p>