Perhaps you should try some spelling variations:
communication medium » communication mediums, communication media, communications media
4 transformation » 1 transformation, die transformation, der transformation
transformation a » transformation _
developpement de » developpement des, developpement durable
technologies 4 » technologies _
de africa » does africa, de america, use africa
2.3 risk » 3.3 risk, 5.3 risk, 4.3 risk
a 2.3 » a 3.3, b 2.3, _ 2.3

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 transformation a 2.3 risk communication medium _ developpement de africa.*.