Perhaps you should try some spelling variations:
transformation cluster » transformation chapter, transformations chapter, transformation case
green transformation » great transformation, green transportation, grossen transformation
carbon transport » urban transport
cluster across » clusters across
transport data » transport demand
language dot » language do, language data, language art
dot carbon » post carbon, data carbon, low carbon
ideas und » ideal und, ideale und, ias und
und green » und grenzen, und greifen, und gremien
data cold » data cloud, data covid, data code

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (( ideas und green transformation cluster across ) OR ( language dot carbon transport data cold ))~.
• Adding a wildcard symbol may retrieve word variants: (( ideas und green transformation cluster across ) or ( language dot carbon transport data cold ))*.