Your Gmail contacts are in the cloud attached to your Gmail account.
On the computer do you use the Browser or an App? On the phone, go to Settings > email + accounts > tap the Gmail account name > make sure contacts is set to sync > go back to email + accounts > hold your finger on the Gmail account name (long tap) > tap "sync" from the pop up menu
Is it better on the computer?
If no... Are you trying to combine Contacts from multiple email accounts on the phone to Gmail on the computer?
If you need additional help or have more questions or details to share, please join the site so you can reply in this thread...