Are all combinations of words in English language already used?

I thought I was being original for naming a tune ASPECT OF ANT, but no, Dungeons & Dragons (the tabletop game) apparently has some feature of similar name. How was I supposed to know that? I haven’t played D&D in like, 25 years!

Ok, let’s see Mr. Google, are the following expressions taken:

– Fear of plastic cutlery
– TV-spell
– Luminous rampant potato

1½ out of 3 were already in use…

Activate more originality!