Searching for (1) in version 10

In version 9 I could find files that contained (1) by searching for '(1') but that doesnt work now. Is there a way to find files that contain (1) with the parenthesis

It works just the same. Why do you think it doesnt?

That's still the right syntax, unless you're typing it into the new Search Field (top-right of the default toolbars), which didn't exist in Opus 9 and uses the Windows Search syntax.

Where are you typing it?

I didnt relize that ctrl+f and the top right were different. sorry.