Perhaps you should try some spelling variations:
21st transformation » cost transformation, just transformation, 2.1.2 transformation
transformation a » transformation _
10 communication » 1 communication, de communication, 3 communication
de developpement » sme development
technology 21st » technology 2.1.1, technology 2.1.2, technology 2.1.3
des africa » does africa, yes africa, de africa
media de » media die, media der, media diet
der 10 » der 11, der 12, der 15
a der » _ der, 2 der, 3 der

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

• Adding a wildcard symbol may retrieve word variants: technology 21st transformation a der 10 communication media de developpement des africa.*.