Perhaps you should try some spelling variations:
2.3.1.1 communication » 2.2.5.4 communication, 3.4.1 communication, 6.2.4.1 communication
et developpement » de developpement, le developpement, test development
developpement de » developpement des, developpement durable
krieg 2.3.1.1 » krieg 2.3.1.2, kriege 2.3.1.3, primer 2.3.1.1
technology 6 » technology _, technology 1, technology 3
6 inflation » _ inflation, 2 inflation, d inflation
inflation a » inflation _, inflation tax, inflation rate
costs et » costs _, costs 4, costs a
a krieg » 6 krieg, 4 krieg, 8 krieg

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

• Adding a wildcard symbol may retrieve word variants: technology 6 inflation a krieg 2.3.1.1 communication costs et developpement de l'afrique.*.