Ran into search issue / nop 4.2

Hi everybody, ran into an issue in search 4.2.

Lets have a prod called "Testmanufacturer product string".
If you type in "Test string" => found.
If you type in "Test ring " => found.
If you type in "String est " => found.
If you type in "ring est" => not found.


Full Text with CONTAINS OR enabled.
Any suggestions?

btw: Thanks for having 4.2, many improvements...