SEO Analisys and online reputation

I need some help to avoid a link to appear in the first page of google. I know some SEO strategies, so this is not the simplest thing When searching for certain criteria on google there is a link that is always on the first results page. I need to get rid of it. I have already done a few things like : - created a website with this criteria as domain (Wordpress in my own hosting) - the same with a blog at [login to view URL] - another website with a different domain but using the criteria for SEO. - Some linkbuilding manually (not too much) After a few weeks all the content is there but always behind the one I want to erase. For me it is difficult to understand why is there because it is not a very important blog. I need someone who can help me with this problem, either by solving it directly or analizing the problem and giving me a plan to achive the goal. I will give you the details later on because I do not want more clics helping the other to obtain even more traffic. Tell me what you could do for me in this project.