Final answer:
Brian should include the word 'that' as part of his search query to find 'books that belong to the 1800s' and consider using additional keywords such as '19th century', '1800s', and 'historical'. Utilizing the Library of Congress Subject Headings or similar online database algorithms is crucial to executing a precise and effective search.
Step-by-step explanation:
If Brian wants to conduct an online search using the phrase 'books that belong to the 1800’s', he should use the word 'that' as part of his search query to ensure specificity. Libraries and online databases organize and retrieve information using algorithms that target keywords. Therefore, if Brian is conducting his search in a library catalog or an online database, he may have to consider various keywords or subject searches based on the Library of Congress Subject Headings (LCSH) or specific database algorithms.
When searching for books from a particular era, using terms like '19th century', '1800s', 'historical', along with the subject matter of the books, could help narrow down the search. Including the word 'that' in the phrase maintains the intended historical context of the books Brian is looking for. Furthermore, if Brian is using an academic library, he should consult the library’s online catalog which most likely uses LCSH for subject searches, while online searches may use different terms and organization methods.
It's important for Brian to practice generating key terms and take notes on the variety of terms that describe his research area, which can serve as both keyword and subject searches throughout his research process. By doing so, he is more likely to efficiently find books from the 1800’s that relate to his topic of interest.