Hi Maksimo,
IM sorry but there is no easy way to save all help and manuals files as text.
Most of them contains HTML links and formatting.
All I can suggest is this:
find the book of
find the info
find the lesson
find the manual
If you can save these as text files then this would be a good resource you can pass on to other players of cow.
Do you know about RSS?
read the info about rss you could use this to make RSS files of these (and othe) searches.