The phrase "a particularly thorny problem" is correct and usable in written English.
It can be used to describe a complex or difficult issue that is challenging to resolve.
Example: "The team is currently facing a particularly thorny problem regarding the budget allocation for the upcoming project."
Alternatives: "a particularly challenging issue" or "a particularly difficult situation".
Genop represents a particularly thorny problem for Mr. Papandreou.
The back book of existing customers presents a particularly thorny problem.
Perhaps we haven't even really grasped just how to go about tackling a particularly thorny problem.
That's a particularly thorny problem if part of your sales pitch is that you've made a thing yourself; a careful artisan can't respond to lower prices with greater volume.
(Also, some House Republicans have said they will hold what are known as pro forma sessions, a manoeuvre that can be used to block recess appointments).A crippled board would pose a particularly thorny problem for Mr Obama: if he leaves it alone he risks angering the labour unions whose support he needs heading into the general election.
(Determining how to handle the death penalty, however determining whether it can ever be a proportional punishment and whether it is ruled out as cruel or degrading is a particularly thorny problem, beyond the scope of this entry. For a brief survey of the difficulty, see Edmundson 2002).
The night raid agreement solves one particularly thorny problem for the Americans, who have taken often-burdensome steps to make sure that when they detained Afghans and transferred them to Afghan custody, they avoided sending them to Afghan holding facilities where there was evidence of human rights abuses, including torture.
Engineers will attempt to fix this particularly thorny problem without gyroscopes early next month, says Fleck.
Martin hopes that, after he surmounts the particularly thorny problems of "A Dance with Dragons," the final two books will come much faster.
A mobile offshore rig like the Deepwater Horizon presents a particularly thorny legal problem.
By attaching things to chickens, Dr Bruno Grossi and colleagues were attempting to solve a particularly thorny scientific problem – how did having such a large, heavy tail affect the way dinosaurs walked around?
