Search filter does not work as well in the new 2.1+ versions.

[mtchetch]

The filtering field in listings does not work as well as in the previous versions.

How to reproduce: The search term does not find entries that have the term in the middle.

Expected results:

The search term needs to match even in entries where it is in the middle.

When having the entry "Test Food Company Oy" and using the search term "food" it should be found. Now only "Test" or "test" returns the result and food or company do not match.