Is there any way to search a keyword in multiple Pages on macbook

Spotlight does search content as well as file names.

Here's a search result on "grep". Note the name of the Pages document, and the name of the dog, which appears once in the document in the text box below the photo.

Regards,

Barry

A more interesting question, perhaps, is how are you managing to run an iOS version of Pages on a Macbook? 🤔

That aside,

You can search for a keyword in multiple documents using a Spotlight search. Click the magnifier icon at the right end of the menu bar and enter your keyword.

The search will,unless you choose a different option, include all documents accessible by the OS.

To limit the search to a single folder, see this 2009 post from Chris CA: Limit Spotlight search to a folder - Apple Community

To locate the keyword in each document, you'l need to open the individual documents and do a Find on each.

Regards,

Barry

I thought that was the probable case, since you chose to post the question here in the Pages for Mac community.

The response above, and the linked discussion are both for the Mac version.

Regards,

Barry

You could narrow the case-insensitive search to just Pages documents containing the word grep:

kind:pages grep