The Blues have lost their last two matches at home without scoring, going down 1-0 to QPR before a 2-0 defeat to Swansea City, and the Spaniard wants to bring that standard up to their away showings.
"We are doing very well away but, at home, the other teams wait deep and we have less space," Benitez observed to reporters. "We are still creating chances but we have to be more clinical.
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"When you play away and have space, with the players we have, they can make a big difference. When you play at home and there are 11 men behind the ball, you have to find space and be more precise. We know we have to do different movements.
"We have confidence we can do well, like we did against Aston Villa and Nordsjaelland. We've had games at home when we've done well but the last two games have been difficult and it's something we have to improve on."
After making his comeback from injury against Stoke City on Saturday, captain John Terry is fully fit for the Blues, Benitez confirmed, explaining: "He was training yesterday and today with the rest of the team. He is fine, he has to play games to improve his match fitness, but the sessions with the team will help.
"Oriol Romeu is still unavailable and we are still without the two players who are away at the Africa Cup of Nations [John Obi Mikel and Victor Moses]."
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The Spaniard would not rule out, meanwhile, the possibility of recalling on-loan striker Romelu Lukaku from West Brom earlier than intended, noting: "It's not easy. Lukaku went there and is doing well, it's part of his development, playing in the Premier League and getting experience.
"We will see, you never say never because something may happen tomorrow and you have a problem but at the moment the idea is for him to stay there and gain more experience."