The phrase "a combination of determination" is correct and usable in written English.
You can use it when discussing the qualities or traits that contribute to achieving a goal or overcoming challenges.
Example: "Success in this project requires a combination of determination and teamwork to overcome the obstacles we face."
Alternatives: "a blend of resolve" or "a mix of perseverance".
All three defeated wealthier, fitter and more skilled opponents through a combination of determination and an effective strategy.
"He is advocating the exact opposite of what Prime Minister Gordon Brown has demonstrated so admirably: a combination of determination and equanimity".
Over the course of treatment, Dr. Loeb added, parents begin to realize that with a combination of determination and creativity, they can get their child to eat.
Nevertheless, through a combination of determination and serendipity, a scant eight months later the clinic opened its doors, serving uninsured low-income adults with chronic illnesses.
But a combination of determination, coincidence and fortunate timing has produced a plan that not only will save the farmhouse and barns, also take the first steps toward transforming the waterfront into an artists colony and center for the arts, fulfilling a long-time dream for the Walnut Beach neighborhood, the city's most densely populated and developed area.
Through a combination of determination, compromise, charm, and intense work with the other justices (including visits to the hospital bed of an ailing Robert Jackson, Warrenn engineered something that might have seemed impossible the year before: a unanimous opinion overruling Plessy.
Through a combination of passion, determination and an unassuming ability to convince others to collaborate, she made it her personal mission to change that.
Hilary Benn, who has described himself as "a Benn, not a Bennite", said Mr Burnham offered a "combination of vision, determination and a great ability to communicate".
A combination of diplomacy, determination on the part of the US and pressure on all parties to come up with an agreement led to a compromise: a new international forum that will argue the same points over the next five years.
Harriet Miers may have been noticed by the president because of her connections, but to have gotten to that position, as those of us who know her will attest, took a combination of sheer determination and a whole lot of excellence.
It has required a combination of keenness, determination, good mentors, and plain dumb luck.
