What to do?Sometimes there are only two options for search scope: documents and all documents.

[dublove]

Sometimes there are only two options for search scope: documents and all documents.
You need to restart the Indesign software, everything is fine.
However, sometimes it will appear repeatedly in a period of time

[leo.r]

Do you mean that the Story option is missing? If so, then a text frame must be selected for this option to be available:

[dublove]

Looking at the picture I posted, I have chosen the text, but there is no "constituency" option.

[leo.r · Accepted solution]

I see. Try the standard troubleshooting steps - sometimes they help solve unusual UI issues:

https://www.rockymountaintraining.com/adobe-indesign-rebuilding-preferences-cache/