3) Click on Custom Range. In "From" select Jan. 2017; in "To" select Jan. 2022
4) Enter your search term, such a spatial databases, in the first box in the Search Within area. Click the Blue Search button.
Creating Persistent links to ACM articles
Use the DOI (digital object identifer) as the persistent link to ACM articles.
DOIs are in the full record view by clicking on the name of the article. Look in the Publication line.
What's a DOI?
"A DOI name - a digital identifier for any object of intellectual property. A DOI name provides a means of persistently identifying a piece of intellectual property on a digital network and associating it with related current data in a structured extensible way." From The DOI System