"complete grasp of" is a correct and usable phrase in written English.
It can be used to indicate a thorough or comprehensive understanding of something. For example: "Through his research, he has gained a complete grasp of the scientific principles at work in this experiment."
Pierce, 25, had a much smoother ride this year, demonstrating a more complete grasp of the game than when she last reached the final here in 1994.
WITH the boom phase of the economic cycle over, it is especially crucial for shareholders to have a complete grasp of a company's leverage.
Even if they did not have a complete grasp of the politics of the '70s, at least they would understand the basics about the characters.
Visual cues associated with the victim's suffering trigger empathic responses in the subject and provide him with a more complete grasp of the victim's experience.
And still if I'm really worried about something, if I feel like I don't have a complete grasp of it, I like to begin in longhand.
Internal life is sketched with a sense of detachment, yet the depths of Hadley's psychological insight, her cool and complete grasp of the human mind and soul is so acute that one can but wonder.
That's Truffaut for you, I guess: no other director had such a complete, instinctive grasp of what it is to be young, or such a shy, limited sympathy for the task of growing old.
Writing an introduction to Far from the Madding Crowd helped to complete the profound grasp of country life that came to underpin Akenfield.
Timothy Carney, a former American ambassador to Sudan and Haiti who served in the reconstruction team in Iraq just after the war, says that there was, in the Pentagon, "a complete lack of grasp of Chalabi's lack of appeal for ordinary Iraqis".
And no understanding of contemporary China can be complete without a thorough grasp of this suppressed community.
Since 2001 there has been a Budapest convention on cybercrime, but what is required is something much more ambitious: something that keeps the sixth domain from complete anarchy, and within the grasp of a few states where there is at least some accountability and the prospect of diplomatic accommodation.
