The country are playing in the tournament for the first time and were narrowly beaten 2-1 by Argentina in their opening Group F fixture.
Susic admits that there is plenty still to come from his side and believes that they have a good chance of progressing to the knockout stages.
"We haven't shown everything we are capable of yet," Susic told reporters.
"I hope that Argentina will win their other two games, because if they do then the second spot will be between Iran, Nigeria and Bosnia. I am convinced that we still have everything to play for."
Bosnia-Herzegovina face Nigeria in their second group match tomorrow evening, before taking on Iran in Salvador next Wednesday.