How to increase quality score of Google adwords?

We’re a NYC based gaming (Mobile,Online & Social Media platform) company with a development unit in India. I’m responsible for all marketing related activities. As a responsibility with marketing aspects we’ve decided to go ahead with Google adwords and we started it from the last month. Although we’re keeping an eye for the keywords but I’m not able to improve our adword quality score. Our counter part in India are not even able to view the Ads on Google search page. Can some onw plz help me to understand the process with real example. (Adword tutorial is not helpful for all quarries). Even the same problem is with Facebook ads also.