Bohui rejected two new contract offers from United before signing for NAC Breda in Holland having never made a senior appearance in his three years at Old Trafford.
“When Jose was there, there were no opportunities for me, Mason, Angel or Chong, but now Ole's in charge there's a different vibe and spirit around the place," Bohui told Planet Football.
“It was not that Jose did not treat me well, which some in the media speculated, it was just that there didn't seem to be a clear pathway for me under him.
“On the training ground, he never spoke to me about what I had to do better and, sometimes, I could not understand what he wanted.
“I also felt that he was not approachable. If I knew I had done well in a training session, he was not there to be supportive – it was the same if I knew I had to improve on something."
Bohui admits it was right for Mourinho to leave Old Trafford.
He added: "It was better for the whole club – United have a style of play which he was not bringing, so he had to be replaced."