Exact - non-exact tuning of the search

[WXKK]

Search became too exact and I can't revert it. Is there a way to start search as I type and return all the results for the phrase I typed?
For example:
I used to type "OOSU + Enter", which points me to OOSU10.exe and immediately starts it. I also could see everything containing "oosu" in any part of the filename by default.
Now, when I type "OOSU" I only see oosu.dll, like there are no more files with this phrase on my PC. So I have to write oosu10 (not even "oosu1" !) or oosu* to find the program

[void]

Please uncheck Match Whole Words from the Search menu.

[WXKK]

Thanks! I tried to find it in Options for a very long time!