So one of the keyword terms I am targetting has 3,000,000 global monthly on broad match but came up nothing for exact match. What exactly does that mean? Should I only target keywords that have a high volume for exact match or broad match? Does broad match mean it could be any word similar to my term? Would exact match be more precise? I am slightly confused...
Broad match means, that keyword can be searched in various combinations. For example keyword is "yoga clothes", broad match includes all searches, that has these two words. And exact match is the exact keyword. It is possible that google keyword tool do not have data on your keyword and just isn't showing anything.
When you search the keyword with {} you find lower websites. Actually those website are also working on the same keyword.