Filtering - Match any number?

I have a bunch of classical music and I'm trying to filter titles similar to:

%title% HAS "op. 12 no. 4"

What I need is a way to match any number so I can search for titles with the same formatting but various op./no. values.

Cheers

Instead of HAS use MATCHES:
%title% MATCHES "op. \d+ no. \d+"

You have to apply a regular expression like the following example ...

TITLE MATCHES "op[. ]\d+\sno[. ]*\d+"

... or simpler ...

TITLE HAS " op." AND TITLE HAS " no."

DD.20150906.2232.CEST

Thank you both, once again you guys have all the answers!