Open the cabinet door and look for a small screw in the side of the hinge, if you have older European hinges without the in/out screw. Loosen the screw 1/8 turn with the screwdriver and test the closing of the door.
To fix the cabinet door, life the door into place and gently tighten the screws with a screwdriver until it's snug against the wood. If the screw turns too freely, the hole may be stripped, and you may need to replace the hinge.
When cabinet doors won't close, determine whether the door itself is getting stuck or the hinge is keeping it from moving freely. But the door itself may be at fault.
Loose or badly fitting kitchen cabinet doors are a common problem.. a concealed steel hinge which are sprung so the door stays closed without the need for. If they won't tighten you may need to discard the original screws and replace them .
If your cabinet doors look a bit crooked, or won't shut properly, you probably have. Tighten the mounting screws on the hinges while your friend holds the door .