Bombina bombina vs toad frog

Bombina bombina and toad frog both are nouns.

Word	Noun	Adjective	Verb	Adverb
Bombina bombina	Yes	No	No	No
toad frog	Yes	No	No	No

As nouns, toad frog is a hypernym of Bombina bombina; that is, toad frog is a word with a broader meaning than Bombina bombina:

Bombina bombina: toad of central and eastern Europe having red or orange patches mixed with black on its underside
toad frog: any of various tailless stout-bodied amphibians with long hind limbs for leaping; semiaquatic and terrestrial species

Other hypernyms of Bombina bombina include anuran, batrachian, frog, salientian, toad.

Bombina bombina (noun)	toad frog (noun)
toad of central and eastern Europe having red or orange patches mixed with black on its underside	any of various tailless stout-bodied amphibians with long hind limbs for leaping; semiaquatic and terrestrial species