Two types of searches are available on the main files:

Simple Search

This search mode demands a single criteria and a precise term.
If it has semantic relationship, the criteria “hierarchy” and “related term” can be selected to widen the search.Full Search

This search mode allows you to select several criteria and to combine them with the Booleans operators AND, OR, NOT.

On each criterion, you can also apply:

Comparators =, >, >=, <, =<, >= <=, > <
Truncation before or after the word.
A search on a specific character string.

If the criterion belongs to a list with an associated term or hierarchy, this can also be searched.