Perhaps you should try some spelling variations:
communication 3.3.1 » communication 13.3.1, communication 3.2.1, communication 3.3.4
three communication » thread communication, true communication, time communication
der developpement » de developpement, des developpements, leur developpement
developpement en » developpement et, developpement des, developpement de
integration das » integration des, integration der, integration 3
1 integration » 10 integration, 11 integration, 12 integration
technology 1 » technology _
3.3.1 der » 2.3.1 der, 3.3.2 der, 5.3.1 der
11 three » 1 three, 2.1 three, 3 three
das 11 » das 21, das 18, das 19

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

• Adding a wildcard symbol may retrieve word variants: technology 1 integration das 11 three communication 3.3.1 der developpement en afrique.*.