"study focus" is a correct and usable phrase in written English.
You could use it as a verb phrase meaning to channel one's attention and energy into studying; for example, "She needed to study focus before the major exam."
To begin the study, focus groups were held recently in Omaha, Atlanta, Scottsdale, Ariz., and Syosset, N.Y.
Buccitelli's study focus the complex interactions between individual contributors, IRL sites, and institutions.
Garcia also teaches a service learning course using Ithaca and Tompkins County as its study focus.
Key areas of study focus heavily on tree fruit, with emphasis on commercial production practices.
Present study focus on the designing of high performance microwave absorbing material against electromagnetic pollution.
This study focus on the same aim with further investigation was performed on several hypometabolism pattern.
However, few study focus on assessing the representativeness of single sample.
This study focus on the role of licensed engineers involved in aviation.
This study focus on technical skills as the skills is significant skills in engineering professionals.
The study focus on an existing district, Part-Dieu, in Lyon (France).
Understanding the breakage feature of granules has been an important study focus throughout the world for many years.
