Now we are back to the structrue of your thesis.
Remember, doing any kind of such research first you got to find some basic background information on yuour subject.
This information might be found on books, some documents publically available, periodicals or even internet.
Remember the SQ3R method: Survey, Question, Read, Recall, Review
Once you got all the info consolidated for your thesis writing, go and evaluate what you got. Often on this stage you will realize you got to get back to the previous step, but keep in mind it’s better to do now than in a couple of steps after that.
With your thesis writing then, shortlist the most vivid facts and evidence into your paper.