When starting new research or summarizing the results of research, it is necessary to review related work in the same research field. The research review requires several point of views such as "problem", "method", "result". Simple search by keywords is not effective to specify and narrow-down the scope of search for these meta purpose. In this paper, we focus on sentences to improve the efficiency of research survey with multiple viewpoints. We developed a search engine for scientific articles which classifies sentences by multiple viewpoints. © 2012 IEEE.