"search box" how do I add keywords?

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Hi,

 

I noticed the "search box" (or quick find box) for my store only brings up products if a word in the title is searched. Is there any way to add descriptive keywords to a product so it will come up in a search?

 

For example: If my product is a photograph, a customer might search my site using different keywords like: "landscapes", "color photos", "red", "b&w photo" or "8x10 photo", etc. I'd like the search to bring up all products with the keyword, not just products with the keyword in the title.

 

Hope I explanied that clearly. Thanks in advance for your help.