Limit related article search to meta keywords?

Hello again,

I have renamed my tabs, and article suggestions is working beautifully. Thank you for showing me how to rename the tabs. I have one more question...

All of the articles on my website are audio recordings and the article title's are an address. The related articles function therefore does't work so well.

Is there anything I can do to exclude the title so that the search relies solely on the meta keywords?

Best,

Aron