I've been publislishing app for 8 years now and in the keywords section I've been the word comma word comma approach with no spaces. If I had a phrase, I would break it up. Then i was just reading about appstore optimization techniques where they mention key phrases. so my question is does a key phrase hold more weight in searches then breaking it up.
example
key phrase - ,spelling words,
or
key words - ,spelling,words,
Thank you