Perhaps you should try some spelling variations:
communication case » communications case, communication based, communication phase
2.2.3 information » 2.2 information, 4.3 information
6.2 communication » 3.2 communication, 2.3 communication, 2.7 communication
technology 2.2.3 » technology 1.2.3, technology 2.1.3, technology 2.2.2
information oder » information der, information model, information code
d1 developpement » de developpement, du developpement, le developpement
developpement l » developpement il, developpement la, developpement de
oder trade » der trade, border trade, modern trade
trade 6.2 » trade 2.2, trade 3.2, trade 4.2
l afrique » en afrique
case d1 » case 1, case d, case 11

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

• Adding a wildcard symbol may retrieve word variants: technology 2.2.3 information oder trade 6.2 communication case d1 developpement l afrique.*.