race problem vs problem

race problem and problem both are nouns.

Word	Noun	Adjective	Verb	Adverb
race problem	Yes	No	No	No
problem	Yes	No	No	No

As nouns, problem is a hypernym of race problem; that is, problem is a word with a broader meaning than race problem:

race problem: a social and political problem caused by conflict between races occupying the same or adjacent regions
problem: a state of difficulty that needs to be resolved

Other hypernyms of race problem include job.

race problem (noun)	problem (noun)
a social and political problem caused by conflict between races occupying the same or adjacent regions	a source of difficulty
	a question raised for consideration or solution
	a state of difficulty that needs to be resolved