SEO: Same text with different keyword in different pages

Hello, I have a question about SEO texts.
Can I use my unique text on one domain with different keywords? For example: I writed unique text with keyword "iphone 6 screen replacement" and I use it on domain1.com/iphone-6-screen-replacement. Can I use the same text on the same domain with the different keyword? Example: keyword "iphone 7 screen replacement" on domain domain1.com/iphone-7-screen-replacement.

I don't think so to using the propert text in domain. Becasue your whole website will be full of with. And google doesn't prior just the domain with using keywords. Google has algorithm which applied for website and consider everyone of point into the website.