Sharepoint search does not return all the documents I expect

[matteomessmer]

Hi,

I created a site column (single line of text) for article codes and added it to my content type. Then I valorised the column for all documents (500 more or less) with their article codes, re-indexed the site and waited a couple of days.
I give an example of an article code, some of them are formatted like this: "ABCDEF 12345.01/A + Z99.123" where the initial part (ABCDEF 12345.01/A) is present in multiple article codes and only the final part (Z99.123) varies
Now the problem I am experiencing is that if I search for "ABCDEF 12345.01/A" I only find a few (4) of the documents that have this string in the article code, while using the filter on the column I can see there are many more (12).
Would anyone be able to help me understand if I have misconfigured the column or if there is a more serious problem
Thank you

[#2]

Are you using &TrimDuplicates=false

[#3]

I've just tried without success

[#4]

This was the most likely cause. Can you validate if all items in the list have been indexed?
I normally do this using
"ParentLink:"https://<tenant>.sharepoint.com/<name of list>/*"
Also check if you use a really low rowlimit

[#5]

@Paul de Jong Yes, all the documents have been indexed

[#6]

Really weird problem.
Can you share the query being executed? (open the console.log and select the network tab in your browser)

[#7]

Sorry for the delay
I think this is what you are asking:
POST https://mytenant.sharepoint.com/sites/MySite/_api/web/GetListUsingPath(DecodedUrl=@a1)/RenderListDat...

As for the request payload here it is: {"parameters":{"__metadata":{"type":"SP.RenderListDataParameters"},"RenderOptions":4103,"AllowMultipleValueFilterForTaxonomyFields":true,"AddRequiredFields":true}}

Thank you