How to optimize for a product by two names

[DRSearchEngOpt]

So let us assume I am selling an item on my website and it comes in a large array of varieties.  Let us also assume that this item is commonly referred to by two different names.  (i.e. Cover & Case, Car & Automobile, Notepad & Notebook) Both of these names that are used, in regards to this product, have, for the sake of argument here, the exact same search volume.

I want to make sure that I rank for both terms.  In my Title Tags I am currently thinking about the following methodology to help that cause.

"GE Motors Super Fast and Awesome Car / Automobile"

"Ghostwriter Kids Notebook / Notepad"

"Super Soft Pillow Cover / Case"

Notice I have the space in between the words and the / but my question is if this is necessary or not?  What is Google's policy on how they view that / ?

Can I do this and still have Google see it as two different words?

"GE Motors Super Fast and Awesome Car/Automobile"

"Ghostwriter Kids Notebook/Notepad"

"Super Soft Pillow Cover/Case"

Apologies if this is a fairly basic question but cannot seem to find this information.

[CMC-SD]

My understanding is that it disregards punctuation altogether.

[irvingw]

I would use the space for better readability. Even if Google disregards the / it's not going to replace it with a space so you would want that space there for separation of keywords.

[SanketPatel]

Hi Thomas

This is really a nice question. I found a nice post on Is Google’s Synonym Matching Increasing?.

Also there is a good post on More info about synonyms at Google by Matt Cutts on Jan 2010.