The title of Research

Salam I Malaysia. Hi Dr Teoh. I am very sorry that I didn't start yet the literature review things. However, I have already set my mind on the field that I want to make research. What is your opinion on my supposed research title: The role of intrinsic and extrinsic motivation among the adult second language learners. A case study among the Royal Health Corps personnel. The relationship between motivation and adult second language learners. A case study in Armed Forces Health Training Institution.