Is there such a thing as shortcuts Option + Plus and Option + Minus on Mac?

Most likely the answer is no (invalid shortcut by itself), since Option+ or - can't be assigned as a shortcut for menu items or tools and Option can't even be used in Action shortcuts. You can however use Option + or - as long as you also add Cmd.

I read your other post, but i really don't understand what your asking?

Are those shortcuts supposed to something by themselves in photoshop?

You can use Cmd+Option+or- to zoom and resize document window if your using floating document windows.

Please explain in great detail.

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