I posted this question to Crestock, but maybe someone here, can answer it.

I'm surprised that some of my best earning images aren't doing as well here. So I started doing searches of some of the foods that have been in my portfolio, for a year, and found that none of my photos turned up. Searches for "peach", "rosemary", and "red onion", "tamarinds", "toy blocks", and more, are not revealing any of my photos. Is this a keyword issue? For instance, when an obscure food like Tamarinds, is searched the result is "0 matches" even though that's the title of my photo. The word "tamarind" is not one of my keywords. So, it appears that your search engine does not include the title of the photo. Is there a way to go back into my keyword selections and add the title of photo?