Perhaps you should try some spelling variations:
mobile communications » mobile communication
developpement de » developpement des, developpement durable
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
variation aid » variation im, variation und, variation a
does mobile » das mobile
de afrique » de l'afrique, en afrique, l afrique
aid does » card does, aid days, aid do
a co » _ co

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "typologie der variation aid does mobile communications ((a o) OR (a co)) developpement de afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologie der variation aid does mobile communications ((a o) OR (a co)) developpement de afrique.*.