The Warriors face a big task if they are to overcome Leicester on Saturday for their final Pool One match.
Speaking in the Evening Times, Ali said: "We'll look at Leicester quite a bit at the beginning of the week and find ways of getting a result. We'll go to Welford Road confident.
"We can still get out of the group and make it to the quarter-finals. I think if we can just execute a bit better when we have the ball in the opposition 22 against Leicester then I'm sure we can get a good result."
Leicester's loss to Racing 92 later on Saturday means that Glasgow will definitely finish second in the pool. With the three best runners-up from the five groups joining the winners in the quarter-finals, the Warriors still have a chance of getting into the last eight.
The match with Munster could have gone either way but Warriors let a couple of drop-goal opportunities slip away as they pressured the visitor's in the closing minutes.
With the benefit of hindsight, the Glasgow scrum-half accepted that was probably the wrong decision.
"Me and Finn talked about it after and looked at each other," he added. "It's just one of those things.
"Looking back now, should we have had a crack? Maybe. But when you're in the game and in the moment we just carried on playing.
"We eventually coughed up the ball. Could we have taken a shot? Yes I guess we could have.
"We wanted to have a bit of ball in their 22 and get through the phases. We were confident we could break them down. I saw him back in the pocket. If the call was there I would have given it to him, but in hindsight it's easy.
"If we're in tight games we've got a drop-goal routine or shape we form into. The boys are very aware of that. Maybe we should have gone into it.
"That's probably on me and Finn as half-backs to organise that. But when we're in their 22 I feel like we can break down any defence and ultimately get a try."
Meanwhile, Brive-ryan-grant-ne-viendra-pas/768339">reports in the French press claim Ryan Grant's loan move to Brive won't go ahead as the Glasgow prop has agreed a deal to join Worcester.