Here are some examples of book subject-headings that might be helpful:
Search for journal articles, books, and dissertations covering literature, language and linguistics, folklore, literary theory & criticism, and other aspects of literary studies
Search for journal articles and books published worldwide pertaining to East, Southeast, and South Asia on all subjects (especially humanities and social sciences)
Search for journal articles covering the history and culture of the United States and Canada, from prehistory to the present
Find journal articles covering the history of the world (excluding the United States and Canada) from 1450 to the present
Search articles, government documents, and grey literature related to international politics and public policy
Search for academic journal articles, essays, and book reviews on major world religions. Includes Catholic Periodical and Literature Index