Search results missing in sharepoint online of the same library

Hi there,

I just review all the steps in https://docs.microsoft.com/en-us/sharepoint/troubleshoot/search/search-results-missing and my problem is not solved. When I search in Everything "CCQ" for a given Wiki Page that has "CCQ" in the Title, the search engine returns me nothing and when I search in Everything "Folha" the engine finds correctly the Wiki Page that is in the same Library that the CCQ article.

So I created a custom Search at "Manage result sources", that has a query 

{searchTerms} Path:https://{{domain}}.sharepoint.com/sites/wiki/Paginas/*

And this query return 6 results.

Then when I try this other method (search all site, and remove what I didn't wonted) I get 38 results

{searchTerms} Path:https://{{domain}}.sharepoint.com/sites/wiki/* 
-Path:https://{{domain}}.sharepoint.com/sites/wiki/PublishingImages/* 
-Path:https://{{domain}}.sharepoint.com/sites/wiki/SiteAssets/* 
-Path:https://{{domain}}.sharepoint.com/sites/wiki/Lists/*

But my "Paginas" library has 56 items. How can this be?

Someone knows that the devil of IT is doing and how to stop this from happening?