isearch but don't move the cursor until I ask to search

Question

In a large file, I would isearch for the word byebug

but as soon as I type by, my cursor is moved to a line containing the word bystander. (The file actually does not have the word byebug.)

But now I'm a bit lost with my cursor at this random line. I didn't find what I was looking for (byebug), and I don't know how to get back to where I started searching.

This kinda sucks. Is there a way to either

a) tell search to not start until I've finished typing or

b) if I search moves my cursor to a partial match, how can I go back to where I was

Answer 1

C-g, possibly repeating it, puts you back where you started and exits Isearch.

Not wanting search to start until you've finished typing is not incremental search. It is plain, nonincremental search. In Emacs you do it using C-s RET.

See the Emacs manual, node Nonincremental Search.

How did I find that help page in the Emacs manual?

1. C-h r to open the manual.
2. i noninc TAB to ask the Index about things nonincremental.

If you get to know the Emacs help commands then you can ask Emacs.