The phrase "a much broader problem" is correct and usable in written English.
It can be used when discussing an issue that is more extensive or complex than initially perceived.
Example: "While we thought the issue was limited to our department, it turns out to be a much broader problem affecting the entire organization."
Alternatives: "a significantly larger issue" or "a far more extensive concern".
"The ELA is one small little morsel in a much broader problem".
But analysts recognize that expiring teaser rates are only part of a much broader problem.
But such an interpretation mistakes what is really happening — and actually represents a much broader problem with our budgetary thinking.
Innocent inmates are a symptom of a much broader problem -- a problem that the current national debate does not address.
His inability to deal with geological evidence was symptomatic of a much broader problem — one that may, in the end, set America on a path of inexorable decline.
"But such an interpretation mistakes what is really happening — and actually represents a much broader problem with our budgetary thinking," he writes.
The issue Downing identifies in Palo Alto is part of a much broader national problem.
Unfortunately for the public, the Metabolite case is only one example of a much broader patent problem in this country.
But Obama's frustrations in bagging a big, nonmilitary foreign policy achievement are rooted in a much broader structural problem — one that also explains why we have not produced a history-changing secretary of state since the cold war titans Henry Kissinger, George Shultz and James Baker.
A widening spy scandal involving a veteran agent of the Federal Bureau of Investigation and a prized informant in Los Angeles is part of a much broader institutional problem that has led to the disciplining of several hundred agents in recent years for improper dealings with informants, law enforcement officials say.
Hooper noted the vandalism in Fort Collins is not an isolated incident and reflects a much broader national problem.
