If a recruiter is searching for someone with experience in Microsoft Word, your name won't appear in search results unless your social profile or resume contain the exact term Microsoft Word. Microsoft Office, the product which includes Microsoft Word, is not a match, so you will not be included in search results for the term Microsoft Word unless you also include that term in the documents. To avoid invisibility, the "right keywords" (for you, you target job, and your target career) must be included in the "right places" (LinkedIn, your resumes and applications, and other online visibility). Most software isn't very smart or forgiving. Most systems won't understand that, to be a successful administrative assistant, knowledge of Microsoft Word is required. Consequently, if the term "Microsoft Word" is used in the job description, your documents or profile will probably not be seen by a human being unless it contains that term.