title: Search word in all Telegram groups with telethon
body: <p>Is it possible to search for one or multiple words in messages on ALL telegram groups using Telethon?</p>
  <p>For example i'm member in only one telegram group &quot;One&quot;.
  I want to search in ALL groups for &quot;promotion&quot; and &quot;bonus&quot; in their group messages.
  I didn't know the name of the group and I'm not a member - just wanted to figure it out.</p>
  <p>I think someone (@fquinto) made something like what i want but he search on a Group names I want in Group messages.</p>
  <p><a href="https://stackoverflow.com/questions/62016386/how-to-search-for-groups-and-channel-in-telegram-using-telethon">How to search for groups and channel in telegram using telethon?</a></p>
  <p>@fquinto
  <a href="https://stackoverflow.com/users/5824889/fquinto">https://stackoverflow.com/users/5824889/fquinto</a></p>