Nobody "stole" any of your edits. I suspect you're confused because your name doesn't appear on all the posts you edited.
Each post (question or answer) shows the author of the original post and the author of the most recent edit. You have to view the edit history to see the authors of other edits.
You've suggested 5 edits, all of which were approved, and you received +2 reputation for each of them.
For 3 of the posts for which you suggested edits, someone else edited the posts after you did. As a result, your name doesn't appear on the post itself, but your name and your edit do appear in all 5 posts' edit histories.
To see the edit history of a post, click on the "edited 1 hour ago" link (or whatever the time happens to be) below the post.