Have Google any Enmity With My Site ?

I am working on my site these day to get ranked better . My site is appearing on 4-5 page of google search for its main keyword .
Till Now I have worked for two Internal pages and put them on top - 10 from their position .
I was able to see my page about 12 hour in top 10 bit not this is no where .
My site is sill in web index .Site's other page are also ranking on 4-5 page for their keyword .
But the page for which I worked are not appearing is search but these pages are also in web index .
I have not done any black hat way to get ranked . I have only Done Social Bookmarking .
My site's all pages are on their position but the 2 pages for which are suddenly not appearing in search .
Please help me to put this out . I am still confused that why it all is happening .
My all hard work in going waste .

 

Some One please help me

 

Promote your website with relevant keywords. And try to see those keywords are longer tail keyword phrases. Because they will keep in a top position longer than a simple one or two keyword phrase due to the sheer volume of traffic and competition.

 

frequent changes in the page may be the reason....

 

Google Crawler is a only a software that check sites according to their content . so if your content is not good then don`t tempered on google just recheck your error and try to improve that.

for more information you must read the google blogs.