How to do multiple Twitter search and join them together?

Hi guys,

I need to do multiple Twitter search and sentiment analysis to compare each query.
For example, I want to compare the sentiment among the different candidates.

I learned from the community that I can use Loop Examples to save me some time:

My question: Is there an easy way to join the ExampleSets above?
I can save them as separate datasets and join them together. Or is there a different way than Loop Examples to do multiple Twitter search?
Also, I thought I know how to aggregate the results for an individual search, but I just realised that I don't...
(such as how many p+, how many p, how many n...)


I kinda want some visualisation like this at the end. I probably can do it manually, but if I have a lot of attributes to analyse, it will take a very long time...