This seems to be an aloof question that I can't track down anywhere including here, so I am going to try again to see if someone has a solution. I have a SharePoint 2013 instance that I use the REST API for doing content searches and return to my React front end to display. This works great. However, I now have a problem when I need to only search for a list of specific documents across the whole site not just in a directory or specific list. I can do a content search using the /\_api/search/query?queryText="" just fine, but I want to construct the querytext of this API endpoint to only search for doucments within the list I provide. 

For example, if I am looking for three documents:

1. Foo.txt
2. Bar.doc
3. Foobar.pdf

I only want these documents and corresponding data (like the RedirectEmbedURL, etc that I get using the search api) not the /\_api/web/lists/getByTitle method.

Is there a way to format the querystring to return only specific files?

Thanks.