The phrase "a problematic concept for" is correct and usable in written English.
It can be used when discussing an idea or notion that poses challenges or difficulties for a particular group or context.
Example: "The notion of free will is a problematic concept for many philosophers who grapple with determinism."
Alternatives: "a challenging idea for" or "a contentious notion for".
In any case, for Bachelet, reconciliation is a problematic concept for reasons other than its practical applicability.
What they expect from the future, which seems to be a problematic concept for them, is almost as unclear as what led them to leave Nukak National Park for the outpost of San José del Guaviare.
Most of all, coalition candidates were able to capitalise on the national mood of jingoism, which had always been a problematic concept for non-interventionist Liberals, whose pre-war principles had been compromised by press censorship and conscription, necessitated by the protracted conflict.
The song was the biggest hit of 1969, an indication that the future remained a problematic concept for many people.
This is a problematic concept, however, since small correlations can exist for erratic as well as highly regular (non-linear) structures, since any more or less regular spatiogenetic structure can come about by chance, and since the forces of structure formation are not explicitly addressed.
In its plea for "honest pub grub" (a problematic concept), the GPG hymns its value pub of the year, the Old Castle in Bridgnorth, Shropshire, for its hearty homemade classics such as fish pie.
Despite its veneer of neutrality (a problematic concept anyway, of course) the Today programme gives us a very specific take on the world.
It's a vague, elusive and problematic concept for both, since they've lived for the last 100 years without clear boundaries, with constant invasion, each within, on top of, over and under the other.
Randomness, because it also deals with probability and predictability, is another problematic concept for biology students, many of whom, using a "street" rather than a mathematical definition, assume that random means "purposeless".
