I was looking for this explanation earlier this week. I literally forget everything if it isn’t some db somewhere.
Exploratory research is an approach where the researchers are not seeking full answers or conclusive evidence. They try to find information about the research problem and to gain more knowledge about the researched phenomena. An exploratory approach helps the researchers to better understand the field they are studying. This approach gives a better understanding of the problem but it does not give the one and only solution to the research question. It leaves room for further research and multiple solutions. The researchers have to be willing to change the way of their thinking if this approach gives them solutions towards totally new ideas.
(Research Methodology, 2016.)