I have over 20 years of human resources and administration experience, and now reach the age of mid of 50's.  I am seeking for senior positions like Chief Executive, or Director of HRM, however,limited posts are advertised.  I also have 1 bachelor and 1 MBA degree.  If such posts are open via executive search, how I contact those agencies?  I have also left my CV to some employment agencies but no response. Thanks for your comemnts.