find keyword

I optimized with more softwares and tools. But the results are coming deferentially. I think the optimize top results by manually is the best way. But I'm not specialize to optimize like that. What you think and how you expertise, - Which techniques/methods we can use for? - Which value for...

Been searching and all day for the profitable "keywords" . But the problem is, what should i do with it? create a domain name related to it, and write few articles with the "keywords" in it. How about a few years old blog with hundreds of articles in it. how do is use the "Keywords" with the...