Very often, the problem is Link Whisper doesn’t know enough about your posts to make a good suggestion. You can tell Link Whisper what keywords are important by creating Target Keywords for the post.
Target Keywords should be either words that you want the post to rank for or words that describe the post well.
To create the Target Keywords for a post, go to the post edit screen. On the page, you’ll see a metabox called “Link Whisper Target Keywords”. Click on the tab called “Custom Keywords” to switch over to the custom keyword creation panel. Inside the panel is where you enter the keywords that you want to describe the post with.
Again, use keywords that you want the post to rank for or ones that describe the post well so Link Whisper can get a better idea of what the post is about.