I am not sure what you are trying to do, but my guess is that you are trying to use the section list in man man as a kind of menu. If so, it doesn't work like that.
In general, you use the name of the command that you are looking for to get to a man page, like...
Or to see what is available for certain words (i.e, groups of things)...
man -k word
man -k ssh (for example)
Please tell us in a little more detail what you are looking for, and maybe some examples of what is not working for you and we can help you better.
Also, telling us what GNU/Linux distro you are using might be helpful.
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You will also note that man pages have a common format. Near the bottom of most you will find a SEE ALSO section with a list of related man pages, like this from man init...
getty(1), login(1), sh(1), runlevel(8), shutdown(8), kill(1), inittab(5), initscript(5), utmp(5)
... that will get you quickly into related pages by typing man getty, man login, etc.