detecting vs detective work

detecting and detective work both are nouns.

Word	Noun	Adjective	Verb	Adverb
detecting	Yes	No	No	No
detective work	Yes	No	No	No

As nouns, detecting and detective work are synonyms defined as:

detecting and detective work: a police investigation to determine the perpetrator

Other synonyms of detecting include detection, sleuthing.

detecting (noun)	detective work (noun)
a police investigation to determine the perpetrator	a police investigation to determine the perpetrator