Advanced Search whymap

The search machine of the Bundesanstalt für Geowissenschaften und Rohstoffe [Federal Institute for Geosciences and Raw Materials] is a full text search over all contents of the website. By the input of several search words and one + between the search words (AND linkage) limit the search.
The Wildcards
* for any letter sequence, e.g. geotherm* for geothermy, geothermic, geothermal etc.,

? for any letter, e.g. optimi?ation for optimization or optimisation

are with the search permissible. Large and lower case do not play a role.