Perhaps you should try some spelling variations:
crisis communication » risk communication, mass communication
2.2.3 information » 2.2 information, 4.3 information
information needs » information networks
das developpement » des developpements, de developpement, du developpement
technology 2.2.3 » technology 1.2.3, technology 2.1.3, technology 2.2.2
communication 3 » communication _, communication a
11 crisis » 19 crisis, 1 crisis, 3 crisis
needs 11 » needs 1, needs 11.5, needs 5.11
3 das » 1 das, 2 das

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

• Adding a wildcard symbol may retrieve word variants: technology 2.2.3 information needs 11 crisis communication 3 das developpement _ america.*.