I need a translation for the phraze 'God, save my mother from death and all illnesses'

There are no reliable online translation tool for latin. Also I don't believe we have any members that are well versed in latin (it's been 6 years for me - a little rusty!). I recommend that you try this forum:

Latin Forum :: Discussion Board - English to Latin Translation

They may be better able to help you than us.

If you wanted help to do it yourself, then please ask and I can give links to vocabulary and grammar resources. Latin is a very structured language and so with a little reading around the right areas I believe you can translate a simple phrase even with no previous experience.