I see. It should be something like 

("%(Token1)*" | "%(Token2)*") & {LF:LOOKIN="repoName\myfolder"}

(I left out the  " LF:ocr" parts because they're implied when you're looking for text matches)

The easiest way to get the correct search syntax is to build it in the desktop or web clients. Add the panels you need and the one for "search syntax". Leave "include search syntax in query" unchecked. Build your search with whatever values you need and run it to verify the results. The "Search syntax" panel will update to show you what the search should be. You can copy the search syntax to Workflow and replace the test values with tokens.