Each of these collections allows for full-text searching of all titles simultaneously:
Sage Research Methods Online (SRMO). SRMO provides access to information about research methods compiled from a variety of Sage publications, including books/handbooks, articles, and the “Little Green Book” series, Quantitative Applications in the Social Sciences. SRMO is searchable and browsable by author, and it includes a methods map, as well as video tutorials. Results can be refined to focus on specific academic disciplines of interest.
Great resource for learning more about what comprises a specific research method, with a view into how that method was applied within actual published scholarly literature.