I tried to use 2 --accept-regex directives, but Wget used just the last one, I had to combine both in order to have the job done. Maybe this isn't a bug, but it would be nice to have Wget matching multiple regexs rather than combining them in just one directive.
First tried directives command:
--accept-regex '.*mod/resource/.*' --accept-regex '.*/mod_resource/content/.*'
Finally used regex:
--accept-regex '.*mod.*resource/.*'
Thank you all
