Space no longer interpreted as AND but as group

[dazhoid]

Hello,
Previously I was doing searches by combining words and extension like "something .txt" and Everything returned me all text documents including "something" in the title. But now the software only returns documents with the exact string "something .txt", not interpreting the space as a AND but as part of the string to be searched.
I have restored all default options but it didn't work...
Thanks for your help!

[vanisk]

by any chance "Enable Regex" is selected in Search menu?