I have a long-tail KW that gets a lot of searches and none of the sites ranking are optimized for it. Let's say the KW was Icebreaker. "Best Icebreaker" is what the sites are optimized for (Meta tags, on-page seo and I'd imagine anchor texts) but "Best Ice Breaker" gets 4x as many exact searches. Will Google see it as a different search term/kw and give me a huge advantage or will the space be disregarded and make no difference?