Make sure you are not logged into google accounts while doing searches for keywords related to your website, this will affect rankings if you have visited your site several times while searching for related keywords or this specific keyword.
Google produced taylored results for individuals with gmail, google related accounts and will push sites you have visited to top positions on the results pages.
Also if you are using chrome this will affect your results in the same way based on stored cookies.
Google produced taylored results for individuals with gmail, google related accounts and will push sites you have visited to top positions on the results pages.
Also if you are using chrome this will affect your results in the same way based on stored cookies.