If you want to narrow down searches on Mastodon, there are special operators you can include in your search ("operator" in this context just means a special phrase).
For example if you want to only search posts you've interacted with in some way, include the operator in:library
Mastodon has lots of special operators like this, you can see them all in the guide at:
➡️ https://fedi.tips/how-do-i-search-for-stuff-on-mastodon
You can also use multiple operators to make searches even more specific.
How do I search for stuff on Mastodon? | Fedi.Tips – An Unofficial Guide to Mastodon and the Fediverse
An unofficial guide to using Mastodon and the Fediversefedi.tips
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