Perhaps you should try some spelling variations:
communication 3.3.4 » communication 2.3.4, communication 3.3.1, communication 3.4.4
time communication » de communication, mobile communication, online communication
du developpement » de developpement, le developpement, et developpement
12 integration » 1.2 integration, r12 integration, 2 integration
technology 12 » technology 1.2, technology 1, technology 2
des afrique » en afrique, de l'afrique
3.3.4 du » 3.3.4 die, 3.3.4 das, 3.3.4 _
4 10 » _ 10, 9 10, 4 1

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 12 integration ((4 10) OR (4 0)) time communication 3.3.4 du developpement des afrique.~".
• Adding a wildcard symbol may retrieve word variants: technology 12 integration ((4 10) OR (4 0)) time communication 3.3.4 du developpement des afrique.*.