Im assuming you're using a content filter? There are a couple of ways to do it, but the easiest it to create 2 conditions, each one for subject contains whatever and in the upper right of the conditions box, set it for "only if all conditions match"
Because we always received the spam mail subject are related as following sample, I tried to use the "regular expression" in "Subject Header" but not work
I would put these in a dictionary, with a weight of 1, and check the box for case insensitive match, then in the content filter set up just one condition to be a dictionary match on the subject.
