The ex-Chelsea coach, recently in England to spy on his former side ahead of Inter's meeting with them in the Champions League last 16, was quoted in the Sun earlier in the week as saying he was keen to work again in the Premier League.
"I was happy in England and when I went there I said one day I would go back. One day could mean 2012 or 2020," he told reporters at Inter's mid-season training camp in Abu Dhabi.
"The problem is they really love to change my words. The problem is I also said I'm happy at Inter and would like to respect my contract which runs until 2012."
In an interview with Portuguese weekly paper Expresso, Mourinho again hinted he was not totally happy in Italy by saying Serie A coaches were more concerned about keeping their jobs than developing new tactics.
"When after a third of the Italian championship nine coaches have lost their jobs, who is the coach that wants to innovate?", he remarked.
"The Serie A coach does not want to innovate, he wants to survive."
Mourinho, also upset by the grilling he gets by Italian media among other difficulties he has found working at in Serie A, said conditions were better in the Premier League.
He cited Manchester United's Alex Ferguson, Arsene Wenger of Arsenal and Liverpool's Rafa Benitez as coaches who had been given time to innovate and develop their tactics.
"(In England) coaches go way beyond their first contract, even beyond the second and the third one and continue developing their work," he said.
"Italy is much more results-oriented. Those who win, continue, while those who don't, get out."
The Portuguese coach said the same happens at the big Spanish clubs like Real Madrid, Valencia and Atletico Madrid, although Barcelona were an exception.
Inter, eight points clear at the top of Serie A, won the championship last season in Mourinho's first term in charge.
