Spurs suffered a run of four Premier League games without a win but the 36-year-old believes his squad have been "immense" when under pressure
After a run of four Premier League games without a win which included a 6-0 defeat at Manchester City, Spurs have secured back-to-back victories to put them three points behind second-placed Liverpool.
“Our group has been immense in the situation we have faced,” Villas-Boas told reporters after the game.
“We got ourselves back on track, into a position where we can challenge for the top.
“This is a credit to them, it is their sweat on the pitch and they’ve been fantastic in the way they’ve approached this game in wanting to play for the badge.
“It [the defeat at Manchester City] was a result that left us ashamed and this completes our fight back into the season.”
Paulinho's strike and John O'Shea's own goal overturned Adam Johnson's opener to secure Tottenham's eighth win in the Premier League this term, however, the visitors were fortunate not to concede a penalty late on after Sandro handled in the area.
When asked if Sunderland should have been awarded the decision, Villas-Boas replied: “I think so.”
“I haven’t seen the incident but I’ve heard it is a penalty. It will be difficult for Gus [Poyet] to accept.”
Gus Poyet, meanwhile, expressed his concern of his side’s second half performance as Sunderland remain five points from safety at the bottom of the table.
“We conceded at wrong times. I don't want to say a bad word on the second half but it wasn't good enough," said the Uruguayan.
“We don’t do the basics for 94 minutes week in week out, there is always something missing.
“I’m not going to say that [being denied a penalty] because even if we get it we probably still lose, 5-2, 6-2.
“The way we are performing at the moment we probably even miss the penalty.”