Perhaps you should try some spelling variations:
2.1 communication » 2.14 communication, 2.3 communication, 2.7 communication
developpement de » developpement des, developpement durable
4 developpement » de developpement, le developpement, et developpement
information 2 » information 3
technology 1 » technology _
preise 2.1 » presse 2.1, preises 2.2, preise 1
de afrique » de l'afrique, en afrique, l afrique
2 preise » 4 preise, 3 preise, 5 preise
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology 1 information 2 preise 2.1 communication costs 4 developpement de afrique.*.