Perhaps you should try some spelling variations:
developpement durable » developpement de
crisis communication » risk communication, mass communication
communication model » communication media
data integration » data integrity
de developpement » sme development
technology data » technology dlt, technology debate, technology debts
1 crisis » 19 crisis
model de » model due, model d, model du

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

• Adding a wildcard symbol may retrieve word variants: technology data integration 3 1 crisis communication model de developpement durable afrique.*.