Filtering to Find
The easiest way to find a piece of content, for editing or deleting, is to use the filter function on the content list.

I generally type a few letters of the title in the title box, and then press enter, which automatically applies the filter. What you type does not have to be the first part of the title either -- it can be from anywhere in the title.
You can also filter on the content type, but if you know the title, the content type won't help you.