Perhaps you should try some spelling variations:
true communication » truth communication, time communication, stroke communication
communication data » communication 3, communication 1, communication 3.3
au developpement » du developpement, de developpement, le developpement
developpement en » developpement et, developpement des, developpement de
data au » data auf, data a, data als
a 2.2 » _ 2.2, a 4.2, b 2.2
a 3.2 » _ 3.2, a 4.2

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "technology _ integrating ((a 2.2) OR (a 3.2)) true communication data au developpement en afrique.~".
• Adding a wildcard symbol may retrieve word variants: technology _ integrating ((a 2.2) OR (a 3.2)) true communication data au developpement en afrique.*.