Welcome to the Make community!
You can use a word boundary delimiter \b with a “Text Operator: Matches Pattern” operator.
(also you want to find Q (size) in Title, not Title in Q (size))
Hope this helps! Let me know if there are any further questions or issues.
— @samliew
P.S.: Did you know, the concepts of about 70% of questions asked on this forum are already covered in the Make Academy. Investing some effort into it will save you lots of time and frustration using Make later!