How to improve on two hands playing?

[chongjasmine]

I am able to play with one hand, but when it comes to two hands, I struggle.
I have a problem with co-ordination.

[outin]

Practice. Short sections. Slowly.

[sucom]

Something I've heard a lot over my years of teaching is 'It's too hard!' or 'I can't do it!'

Trying or wanting to learn a whole piece or even four bars can initially seem overwhelming so the first thing would be to make sure the piece you are trying to play is within your reach and not too difficult too soon.  Learning to play with two hands can take time so start with something very easy and work up from there.

One way to overcome coordination problems would be to break down the piece into small sections, as Outin suggested.  When students used to say to me that something was too hard, I would ask them if they would say this if I was only giving them one bar to learn. I would say, supposing this piece was only that first bar that you say you can't do, would you say it is too hard then?  This puts things into perspective and takes away the overwhelming feeling of overload.

Baby steps is the answer here.  Take baby steps, remembering that a journey of a thousand miles begins with one small step.

Good luck!

[compline]

I am able to play with one hand, but when it comes to two hands, I struggle.
I have a problem with co-ordination.

Can you play C major scale two hands playing, or other easy scales up and down?
Do you read music?

Apologies , but  I am not sure if you are beginner stage,  but the above advice from the  the other posters, is very good,  if you are reading music from a sheet, just take one or two measure at a time , until you improve your coordination,  and requires lots of concentration.  Don't worry you will get there in the end.