A mistake in a paragraph and how to fix it

Question

I sent my brothers girlfriend who is Mexican a Spanish paragraph,She said it was good except I didn't use the word "to" I used que which I thought also meant "to" but she said to use "a". The paragraph is copied and pasted below My question is when should I use "a" and when should I use "que"?

Yo creo lo que paso con él y su esposa no tiene nada que hacer con su trabajo,porque el trabajo y su casa son dos lugares differentes.

Answer 1

AFAIK, Nada que ver, nada a ver, and nada que hacer are all correct phrases, but I've never heard 'nada a hacer' (although Google suggests that this term can be used interchangeably with nada que hacer, I think nada que hacer would be preferable overall since nada a hacer will, in spoken Spanish, sound like 'nada hacer').

Also, not entirely sure, but I would use nada que ver instead of nada que hacer in the above sentence. Might be wrong here, but nada que ver means "nothing to do" as in "is not related to", while nada que hacer means "nothing to do" as in "can't help/cannot contribute".

No tengo nada que hacer para ti: I can't really do anything for you.

No tengo nada que ver contigo: I don't have anything to do with you anymore.