The phrase "grasp the nuances" is correct and usable in written English.
It can be used when discussing the understanding of subtle differences or complexities in a subject or situation.
Example: "To truly appreciate the artwork, one must grasp the nuances of the artist's technique and intention."
Alternatives: "understand the subtleties" or "comprehend the intricacies."
It's difficult enough already to grasp the nuances of consumer credit scoring.
Some observers, however, doubt that American executives grasp the nuances that entice Indian audiences.
Within weeks, the bank reverted to a dress code of business formal; I guess some folks just couldn't grasp the nuances of business casual.
But since most of the monologue is delivered in Russian, only those conversant with the language will grasp the nuances of her plight.
He doesn't grasp the nuances of excess as well as a Mario Batali or a Michael White — doesn't fully understand what's splendid decadence and what's just overkill.
It was a disappointing one-year stint, highlighted by Ochocinco's declining change-of-direction-quickness (which had been the crux of his brilliance) and inability to grasp the nuances of the scheme.
I expected him to suggest that all the online petitioners had failed to grasp the nuance and importance of the ratings system.
For example, because it's been programmed to look for topics by keyword, apparently, it didn't seem to grasp the nuance of a query asking for "U.S. news".
They can't grasp the nuance, the complexity; they can't distinguish between what is and isn't important; they confuse trivialities with disasters about to smash through our door, and vice versa.
It's a conundrum of MacFarlane's career that he depends on viewers to grasp the nuance of that moment at the same time that they should be the kind of people who genuinely enjoy a good Kardashian joke.
A first-round draft choice from Florida State, Ponder said McNabb helped him with everything, from grasping the nuances of a West Coast offense to teaching him how to politely ask autograph seekers for privacy during dinner in a restaurant.
