A useful browser feature is to search for text on a webpage - use Control-F (PC) or Command-F (Mac) and search for your word.
Google Scholar offers several features of interest to scholars. You will want to use Google Scholar, in combination with library databases, to cast the widest net to find sources. For example, library databases often do not include conference proceedings articles. Google Scholar will often find conference articles.
Google Scholar Metrics provide users with a way to gauge the influence of journal articles and scholarly works. The Google Scholar Metrics Help pages provide more information about how Google calculates metrics.