Is there a way to get stuff off the internet about you on Google searches ?

Does anybody know ways for Google to delete some stuff of you on the internet?

For example, when I Google my name, sites pop up (mostly networking sites) ,but I don’t have the email or password to them.

Is there anyway to fix this or does it solely depend on the sites that Google is advertising? Is there a way to control it?

For example, I have a Flickr account, and I don’t have the email or password anymore, but it still pops up on the internet. How can I delete this account and have it not show anymore?