If you start typing in vim, then press
ctl n, vim will give you a list of autocomplete options.
In this list you can press
ctl n and
ctl p to navigate the list.
However, by default, vim won't show you any autocomplete options with a dash in them.
For instance, if you have the text
this-is-a-variable. And you start typing
t, and then press
ctl n, it will only show you
To make the autocomplete list include items that have a dash in them, add to the