I am not sure exactly what you are looking for. If you are experiencing a technical issue with your keywords I suggest starting with calling AdWords Support at 1-866-2GOOGLE. If you just have general questions about particular keywords or how they work I think if you post more specifics, you will get some very good answers here.
I would start by going to the keyword planner in your adwords account and doing a search for "tech support company". The keyword planner will provide you with a number of keyword suggestions along with how often they are searched and how much a click might cost.