Perhaps you should try some spelling variations:
3.1 transformation » 3.2 transformation, 3.3 transformation, 1.3.1 transformation
transformation a » transformation _
developpement en » developpement et, developpement des, developpement de
d developpement » de developpement, du developpement, le developpement
technology 3.1 » technology 1, technology 2.2, technology _
die risk » diet risk, de risk, die risiko
a die » 2 die, 3 die, _ die

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

• Adding a wildcard symbol may retrieve word variants: technology 3.1 transformation a die risk communication a d developpement en afrique.*.