Sarika,
IT seems very obvious you have not had basic homeopathic training - what are your "researches" for?
Firstly, before ANY remedy can be chosen, its imperative to take a good history - so case taking plays a big part in a remedy choice.
SO before remedytaking - the right approach is "casetaking".
Secondly, the perceptive and analytical power of the homeopath is important (improves with experience) to decide on which are characteristic symtpoms to be used frm the history to prescribe a remedy.
Once there two steps are done well, then comes the remedy choice. This is not based on numerically covering all symptoms, but the remedy which covers the "picture" the best.
Once that is decided, one needs to then evaluate remedy response to the first prescription whether it has helped, adjust dosage requirements or change of remedy.
All this requires tremendous study of remedies and the application of the art and science. I don't think you're going to get that from picking out random symptoms out of the repertory simplistically!
So if you are a sincere student, start with learning the right processes and understandings of homeopathy before you go into "researches".
Then you will really experience the benefits of homeopathic healing.
regards,
doctorleela