Perhaps you should try some spelling variations:
china communications » china communication, china's communications, chile communications
communications 13 » communications 1, communications 14, communications 3
der developpement » de developpement, des developpements, leur developpement
developpement de » developpement des, developpement durable
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
variation 2.4 » variation 2.1, variation 3.4, variation 6.4
de afrique » de l'afrique, en afrique, l afrique
2.4 does » 1.4 does, 2.3 does, 2.6 does
13 der » 1.3 der

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

• Adding a wildcard symbol may retrieve word variants: typologie der variation 2.4 does china communications 13 der developpement de afrique.*.