What is the difference between "further" and "more"?

Hi guys!
What is the difference between further and more?
Because I am studying this text - http://www.bbc.co.uk/news/world-europe-25514624 and while I am searching from the internet and I see that further means "mais" but more too means "mais".
When should I use this expressions?

Best regards.

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Minato, these words are mostly interchangeable when they are used to mean "additional". "Further" is also more formal than "more". Either of the following would be correct:

For further information, click on the link below.
For more information, click on the link below.

Any more questions?
Any further questions?

In some cases, however, only "more" is appropriate (for example, when "more" indicates comparison):

He's cool but I like you more. (Correct)
He's cool but I like you further. (Incorrect. It almost hurts)

I hope that helps. ;)