I got a problem on all my sites which made with WP. The site's main keywords on homepage is ranking very well, The main keywords is very difficut to compete, the domain is 11 months age, so i think it's not in sandbox. But the confuse thing is site's single post's ranking. All single posts cann't get any good ranking, i really didn't know why and i have done all seo things - seo title, seo discriptions and keywords etc, but haven't seen it changed. Who has any experiences on it? Please show me your experiences and help me, thanks!