Dunga was happy with Brazil's draw against Argentina but felt his side could have done more to capitalize on a tense home crowd.
Dunga believes Brazil failed to take advantage of a tense atmosphere inside El Monumental during Friday's 1-1 World Cup qualifying draw against Argentina, but praised his side's second-half showing.
Argentina is still searching for its first qualifying win after Lucas Lima's first goal for Brazil canceled out Ezequiel Lavezzi's first-half opener for the hosts.
Dunga expressed his surprise at the mood from the home fans and the Brazil coach thought his side should have done more to capitalize.