Perhaps you should try some spelling variations:
communications code » communication mode, communications case, communications models
der communications » peru communications, do communications, border communications
de developpement » sme development
developpement de » developpement des, developpement durable
technologies co » technologies _, technologies 4, technologies 2
co information » do information, 2 information, 1 information
4.2 der » 2.2 der, 3.2 der
der der » oder der, der de, der den
code de » code des

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

• Adding a wildcard symbol may retrieve word variants: technologies co information 4.2 der der communications code de developpement de l'afrique.*.