Perhaps you should try some spelling variations:
4.1 communication » 4 communication, 2.3 communication, 3.2 communication
4.2 developpement » 4.2 development, de developpement, le developpement
developpement de » developpement des, developpement durable
inflation rates » inflation rate
rates green » rates greece, rates great
de fabrique » la fabrique, de l'afrique
green 4.1 » green 1.1, green 3.1, green 41

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

• Adding a wildcard symbol may retrieve word variants: technologien _ inflation rates green 4.1 communication costs 4.2 developpement de fabrique.*.