vim Searching the manual


:help [subject] attempts to find the "best" match for the argument you supply. The argument "can include wildcards like *, ? and [a-z] (any letter).

You can additionally use Vim's command-line completion with CTRL+D:
:help spli<Ctrl-D> will display a list of help topics matching the pattern spli, including split(), and :split.

To search for Ctrl-based commands, like Ctrl-V, type:
:help ^V with a literal caret character, or even more specifically,
:help i_^V to get help on Ctrl-V in insert mode.

As you see, vim has a nomenclature for its help topics. For instance, options are quoted (see :h 'sw'), commands start with a colon (see :h :split), functions end with empty brackets (see :h split()), insert mode mappings start with i_, command mode mappings start with c_, and so on, except normal mode mappings that have no prefix.

Search termHelp page
:help textwidthConfiguration for line-length/text-width
:help normal:normalcommand, to execute normal-mode commands from the command-line
:help cursorVimscript command to move the cursor around
:help buffersWorking with buffers; same as :help windows
:help :bufferThe :buffer command
:help :vsVertical splitting