Perhaps you should try some spelling variations:
external communication » internal communication, internal communications, personal communication
innovation 6.4.1 » innovation 3.4.1, innovation 6.2.1, innovation 6.3.1
de developpement » sme development
developpement l » developpement il, developpement la, developpement de
do external » do externel, does external, 4 external
l afrique » en afrique
6.4.1 do » 6.4.1 co, 6.4.1 die, 6.4.1 how
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: technologies _ innovation 6.4.1 do external communication a de developpement l afrique.*.