As part of the operation, the Search application performs a linguistic analysis to ensure that different word forms, such as plurals, verb endings, and grammatical tenses, are matched correctly in the search results. For example, when you search for the term goose, you might expect to get results that contain the term geese. Similarly, when you search for the term run, you might expect to get results that include the terms ran or running.
The more times your search term appears in a piece of content, the higher that content will be ranked in your search results. The number of times a piece of content has been bookmarked in Bookmarks also influences its ranking in your search results, as does the number of times a piece of content has been liked or recommended. If your search term appears in the content title or as a tag of the content, this does affect its search results ranking, but no more so than if it appeared in the content. It is the frequency with which a term appears that matters primarily.
The type of content that is searched varies from application to application. For example, content from file attachments is only searched in the Files and Wikis applications. For more information about what content is searched for each application, see Searchable content.