Manchester United manager Louis van Gaal says "the goals are coming" for his side despite another goalless draw.
United drew 0-0 with West Ham, a fifth such scoreline in their past nine games in all competitions.
The result means the Red Devils drop to fourth in the Premier League, failing to capitalise on rivals Manchester City's 2-0 defeat at Stoke.
"We've created enough chances to score so that was not the problem," Van Gaal told BSports.
The hosts were lucky to escape with a point after seeing the visitors hit the woodwork twice at Old Trafford and although they are unbeaten at home so far this campaign, Van Gaal's side have scored just nine times in seven games.
Midfielder Marouane Fellaini missed their best chance, shooting straight at West Ham goalkeeper Adrian from inside the six-yard box, before the side were booed off the pitch by their own supporters.
"The most important thing is you dominate, create and you finish. Football is about scoring goals. The first two basic aspects of football we have done," Van Gaal added.
"When you don't finish from a metre in front of an empty goal, you cannot say anything anymore. You have to finish and that's the only problem we have. We played very well especially in the second half - but you have to finish.
"We've created enough chances to score so that was not the problem. When you create enough chances you don't have to complain. The goals are coming. That is my strong belief."
The problem Manchester United face up front is highlighted by the fact that Wayne Rooney and Memphis Depay have scored just two goals each in the league this term, while Anthony Martial has three.
The club's highest scorer is Juan Mata, who has found the back of the net four times in the top flight.
"The question is would Barcelona striker Luis Suarez or Manchester City striker Sergio Aguero score if they were here?" Van Gaal said. "That is also a question mark. You never know. I think they would though."
Asked whether he understood the fans' reaction at full-time, Van Gaal said: "No I don't. They have seen a fighting spirit until the end, seen we created chances and seen we attacked with a lot of players.
"So you cannot always demand that we score goals because there's also a little bit of luck. The fans have the right to show their opinion."
United face a trip to Wolfsburg in the Champions League on Tuesday, knowing they must match PSV Eindhoven's result against CSKA Moscow to make it through to the knockout stages.