Hi SP.

It could be the Licence warning thing.
Just have a look,
Go, Tools/Options/Searching/Basic, it says, "Show Licence Warning"
Un tick the box if you dont want to filter out copyright Files.

This option is enabled at setup, The choice is your decision.
Do a test to see if search resolts improve.
You can reverse this change at any time.
Peace.

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mickjapa108