How do i find more occuraence words from a content.

Hi,
how do i find the more occurrence words from a content in sql server.

Ex: i have a table called CV_Upload having Columns Id,CV_Content,Primary_Skill and i am storing CV Content into the CV_Content column of CV_Upload table and now i want to find the primary skill from this content and update in primary_Skill column.
means the technical skill(ex: .net, java, testing) which repeated more times in content and this All technical skills i am keeping in a different table.

Please let me know if needs more clarification.

Thanks
Santosh