The phrase "precisely because of that" is correct and can be used in written English.
This phrase is generally used to draw a conclusion about something based on what came before it. For example: He had worked hard all night, so he was exhausted, precisely because of that he was not able to perform well in the exam.
Illnesses like bi-polar disorder are unpredictable and many people who have it cannot plan for their future precisely because of that.
The work skills that served them so well for decades were no longer valued; their unsellable houses tethered them and they couldn't relocate if and when a job offer was proffered; and many who collected their 99 weeks of unemployment later found that the workforce had no interest in them precisely because of that.
Somebody from anaesthesiology has been made responsible for the protocol there, that's another discipline, but it has been made responsible precisely because of that.
The answer is, precisely because of that far-sightedness.
But, precisely because of that structure, he couldn't gain any traction.
Some, in fact, said they were drawn to Mr. Obama precisely because of that speech.
We recognize that we will not see our loved ones after we all die, and it is precisely because of this that we strive to view every moment of our waking lives as opportunities for love and happiness.
It is precisely because of this that we have achieved much for international security and for Afghanistan's development.
Others say it is precisely because of history that German uniforms cannot be seen near Israel's borders.At all events, it is a far cry from the pacifism of Germany up to the 1990s.
It is precisely because of this that Oxfam, founded in Oxford in 1942 as Famine Relief, turned to the actor Scarlett Johansson in 2007 to become its global ambassador.
European banks, many of which were slower than American ones to raise capital when investors grew more friendly in 2010, may need to be rescued again precisely because of fears that the rescuers of 2008 — national governments — may not be able to meet their obligations.
