The phrase "a confluence of problems" is correct and usable in written English.
It can be used to describe a situation where multiple issues or challenges are occurring simultaneously, often leading to a more complex problem.
Example: "The project faced a confluence of problems, including budget cuts, staffing shortages, and technical difficulties."
Alternatives: "a combination of issues" or "a merging of challenges".
Power executives and government statements attributed the electricity shortfall this winter to a confluence of problems.
Across Japan, Buddhism faces a confluence of problems, some familiar to religions in other wealthy nations, others unique to the faith here.
That produces a confluence of problems, he said.
A vast, well-groomed complex of 171 buildings, Parkchester has only recently emerged from decades of decline involving an unsuccessful conversion from rentals to condominiums and a confluence of other problems.
Might Republicans be mired in a different and deeper rut, dragged down by an unusual confluence of problems as the party faces an exceptionally potent opponent in Barack Obama?
It is an expensive confluence of problems.
Mr. Giuliani spoke with commendable candor about his sadness over the state of his marriage, his determination "to deal with it honestly and directly" and his priorities in meeting an astonishing confluence of problems.
In March, members of the Board visited the Solomon Islands and Fiji, Pacific Island countries threatened by an alarming confluence of problems, including climate change, vulnerability to natural disasters, widespread poverty, as well as poor inter-island connectivity that impedes the provision of services.
It revealed that maternal health emerged as a political priority in India in 2005 as a result of a confluence of events concerning problem definition, the generation of policy alternatives and political change.
But it has doggedly refused to accept liability, insisting that the source of the cholera remains unclear and that the epidemic was caused by a "confluence of circumstances" that included problems with water, sanitation and public health.
The confluence of problems within Spain and in the broader union have not just hurt business but have also left many people feeling unmoored.
