Perhaps you should try some spelling variations:
communication 13.3.1 » communication 15.3.1, communication 3.3.1, communications 14.3.1
true communication » truth communication, time communication, stroke communication
das developpement » des developpements, de developpement, du developpement
developpement de » developpement des, developpement durable
12 integration » 1.2 integration, r12 integration, 2 integration
technology 12 » technology 1.2, technology 1, technology 2
13.3.1 das » 1.3.3.1 das, 3.3.1 das, 1.3.1 das
de afrique » de l'afrique, en afrique, l afrique
12 true » 1 true, 2 true, 12 three
der 12 » der 10, der 11, der 15

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

• Adding a wildcard symbol may retrieve word variants: technology 12 integration der 12 true communication 13.3.1 das developpement de afrique.*.