How to repair my keyboard

Sometimes when i try to write some of the letters, like p and most the letters around this one, something else happend. I hear short sound and then few other letters are written instead of the one i want, or it react like a shotcut and open and change something that i don`t want to. Please help me. Can i fix this by my self somehow because i`m really far from the town and can`t take it in service on fixing.Thank you.