The phrase "a far more difficult and" is correct and usable in written English.
It can be used when comparing the difficulty of two or more things, emphasizing that one is significantly more challenging than the other.
Example: "This task is a far more difficult and complex challenge than I initially anticipated."
Alternatives: "much more challenging and" or "significantly harder and".
That's a far more difficult and complex debate.
Right now Mr. Bush has an extraordinary amount of political capital, enough to press forward with a far more difficult and dramatic domestic agenda than the one he suggested last night.
In light of the extraordinary competition in golf today, the Woods Slam of the four major PGA tournaments is a far more difficult and courageous feat than anything that Jones was ever faced with.
"An average citizen showcasing a political viewpoint Google and the left disagreed with would almost certainly have had a far more difficult — and fruitless — time fighting back," he wrote.
Rather they show that Confucius revered and respected the spirits, thought that they should be worshipped with utmost sincerity, and taught that serving the spirits was a far more difficult and complicated matter than serving mere mortals.
Although creating a human brain activity map may prove a far more difficult and complicated task, he says that this Grand Challenge is needed to spur development of new tools and get scientists from many disciplines working together.
But choosing the right trial is a far more difficult pursuit, and people don't always realize what they are getting into.
Advice to voters: Don't forget that the year didn't begin in December; as good as "Gran Torino" is — and let's hope that Clint Eastwood gets a best-actor nod for it — it wouldn't be crazy to nominate him for best director for "Changeling," which was certainly a far more difficult film to make and which, in its way, is equally personal.
"This season was deemed as a far more difficult year to secure promotion and that has proved to be the case," he said.
The rich portrait that presenter and reporter Sarah Koenig painted would be a far more difficult feat without recordings of police interviews and transcripts of examinations – the primary documents that allow the story to be so compellingly told.
"Many women scientists believe that achieving equity in academia is a far more difficult challenge than making inroads as scientists and technicians in business and industry" (Thom, 2001).
