Please make the text to image generator use a true boolean search and commas for separating things

I need to make an image for Christmas dinner with shrimp, turkey, and fish. I tried to make such an image in Firefly, but it keeps making squid with shrimp heads, or unidentifiable white "fish" blobs. Having a comma between each individual "idea" I have would really help because I could say "Christmas dinner, shrimp, fish, turkey" and it should give me those individual aspects, and not just mix them all together into a turkey with a Christmas tree leg, and a silver shrimp. 

Same thing with the boolean search. I NEED to be able to tell the software that I want a turkey and a shrimp, but not a squid. 

As this stands, it's very entertaining because you end up with chimeras that would fit into a Star Trek episode nicely, but I need images to use in a professional video (that is decidedly not part of the sci fi genre). I find it odd that this wasn't an initial stage of this program. It is (or was) part of Lightroom to separate keywords by commas, so it is already part of the Adobe system, and boolean searches are used in all kinds of areas, and I would expect them in any search-type system.