Villa have netted only 12 times in 16 Barclays Premier League games and even the reintroduction of Darren Bent as a second-half substitute failed to spark a breakthrough against the Potters.
Lambert said: "Look, I want to win, it's as simple as that, and on another day we might have got one or two goals and restricted Stoke to one real chance.
"It (the goals tally) is something I'm not actually overly worried about because I know it will come."
When asked if Bent's inclusion would improve the situation, Lambert said: "The team will. It's not just about one individual, it's about the whole team.
"There never has been a problem (with Bent) from day one.
"As I've said before, I just try and pick a team to win. That's what I try to do, it's my job."