To search for Dredd Blog subjects, in addition to the standard search window at the upper left on any page, you may use Google.
Do your google search as follows:
"Dredd Blog [subject to search for, or title of post to search for]"
example subject search: "Dredd Blog MOMCOM"
example title search: "Dredd Blog The Government of
(Google link). Have fun!
Additionally, there are two features "POPULAR POSTS" and "LABELS" at the bottom right on each posted page, above the "copyright" statement.
Finally, you may peruse posts by date in the "Blog Archive" section on the right near the top of each posted page.
Note also that the Series Posts tab has isolated some subjects that are spread over several posts in a series. Click on that tab for a list of subjects in alphabetical order. You can click on any post of your choosing without having to do a search.