The phrase "underlying focus on" is correct and usable in written English.
You can use it when you want to refer to a particular point of emphasis or a central subject. For example, "The underlying focus of this discussion is on the impact of climate change on our environment."
For example, you might tell groups to look at different opinions on the movement's potential or examine the facts and figures underlying focus on the top 1 percent of the economy as part of the analysis.
Reduced uncertainty triggers the LDP's underlying focus on organisational control.
The context of high uncertainty triggers the LDP's underlying focus on organisational creativity.
The context of high uncertainty, coupled with reinforced hierarchical authority, triggers the LDP's underlying focus on organisational control.
Recently algorithms based on Swarm Intelligence (SI) have gained prominence due to the underlying focus on collective intelligent behavior.
Laboratory experiments are performed to investigate the effect of the underlying focussing mechanism on the shape of the breaking wave and its velocity field.
The strategy document nods to the thinking underlying the focus on voluntary measures and physical activity.
The Ensembl genome browser and underlying databases focus on chordate organisms.
Political and economic arguments underlie the focus on cellulosic ethanol production as a preferred process for meeting future renewable fuel demand.
His underlying argument focuses on the fact that health inequalities are only a subset, as it were, of the inequalities with which justice is concerned.
In sum, it showed that midwives were trained three years at the undergraduate level with an underlying philosophy focusing on illness and a medical model rather than on wellness and comprehensive health care approach.
