Not really other than to say you should use a compost specifically designed for Orchids which can be purchased at good garden centres.

http://www.thegardenersalmanac.co.uk/Data/Cymbidium&%20Orchids/Cymbidiums%20&%20Orchids.htm

If you scroll down to the bottom of the page and choose O then orchids there is lots of info from members, I can reccomend a blog by Spritzhenry....with her advice I have successfully got my orchids to reflower.....and have never needed to repot them