Try searching using truncation. "Truncate", or shorten your word and replace the word ending with a symbol. For example, shorten gentrification to gentrif*. "Gentrif*" will return results including the words gentrification, gentrify, gentrified, etc. The asterisk is the most common truncation symbol used in databases.
Consider using synonyms or related terms with OR to broaden your search. For example, Gentrif* OR "neighbohood change". Check your results for other terms to include.
Quotes are used to search for exact phrases.
Use AND to narrow your search to a more specific topic. For example, (gentrif* OR "neighborhood change") AND "public spaces".
Ask a librarian for more helpful search strategies and tips.