"difficulty of understanding" is a perfectly acceptable phrase in written English.
For example, "The difficulty of understanding the underlying concepts makes the course difficult to complete."
Therein lies the difficulty of understanding the impact of welfare policy changes on children's lives.
Another cause of the difficulty of understanding public sector accounts is vested professional interests.
The problem lay in the difficulty of understanding Jesus as truly human.
By emphasising the difficulty of understanding Abraham's response to the divine command, he emphasises the difficulty of faith itself.
The effect is to communicate the difficulty of understanding things, and the hidden layers of meaning in every moment.
Were potential buyers disconcerted by the difficulty of understanding the connection between the title and this piece of artistic labor?
But the university is now picking and poking at the wonderful gift it was given, most recently by trying to clarify in court the terms of the deed, which have not presented any difficulties of understanding up till now.
And Romano Prodi, the European Commission's boss, moans that the draft "lacks vision and ambition".Such differing reactions reflect the political prejudices of the speakers and the difficulties of understanding the complexities of a constitution that runs to several hundred pages and covers topics as diverse as human rights, the political institutions of the Union and social policy.
However, these assumptions will weaken the mathematical relationship between grinding conditions and ground surface qualities and will increase the difficulties of understanding on the nature of grinding process.
9 Maurice Nio's reaction to the difficulties of understanding a continuously changing reality and producing architecture with a unique system of values would translate into an attempt to enlarge the range of elements in architecture, or, in other words, to mystify the given architectural setups of the time.
The method was found to be readily managed by patients although a small number of scales presented difficulties of understanding to patients and difficulties of analysis.
