Perhaps you should try some spelling variations:
crisis communication » risk communication, mass communication
technology private » technology preface, technology rate, technology related
information need » information needs, information needed, information speed
de developpement » sme development
a crisis » 19 crisis
need a » need _
a de » a die, a der, a des

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

• Adding a wildcard symbol may retrieve word variants: technology private information need a crisis communication a de developpement _ america.*.