An effective way to retrieve the most relevant results is to conduct a subject search. In "Advanced Search" on the library's website, use the "Subject" field. Combine your keywords with AND | OR | NOT expand or limit your searches accordingly. Some suggested searches for this course include:
Naturalization OR Naturalisation (very broad search but includes all possible results )
Citizenship AND immigrants (very narrow search)
Naturalization NOT Ecology (search results will not include the topic you are not interested in)
Use the "Content Type" filter to make sure your results are limited to academic sources like journal articles, books and book chapters, and conference papers:
Check if the "Peer-Review" icon appears underneath the description for articles:
