Every database works differently, and in many cases that also includes how to construct and run a search. Not every database has controlled vocabulary, and those that do often do not use the same term for a concept across databases.
Taking our search strategies that we created earlier, now we can translate our searches into the specific strategies for each database.
Proximity searching is not compatible with truncation (*)
The defined adjacency operator (ADJn) retrieves records that contain search terms within a specified number (n-1) of words from each other in any order