Yeah, that's tough because that dialog only filters on actual string matches, and doesn't support a regex type query.
Niel's idea is very inventive, but I think it will only work on file-based databases, because for a regular database you can't specify all tables (unless you select them all, but then it leads to an output port for them all, whether they're used or not).
So for a relational database I'd suggest using a SQLExecutor to get a list of tables, using a query like this:
select name from sys.tables where name like 'strasseninfrastruktur%' and name like '%_ct%'
i.e. get a list of matching tables by querying the database's own sys tables. Then you can feed those names into the FeatureReader as Niels suggests.
The other advantage is that this is a dynamic solution - as more tables are added or existing tables removed (schema drift) - then you are automatically covered.
I see you are using Smallworld, which I don't have access to and haven't used in a long time. I think this method should still be OK, but I can't recall what sort of system tables Smallworld might have available to query.