Perhaps you should try some spelling variations:
time communication » de communication, mobile communication, online communication
variation series » education series, action series, edition series
developpement en » developpement et, developpement des, developpement de
typologien der » typologie der, typologie des, apologien der
der variation » de variation, does variation, die variation
series dem » series de, series nejm, series d
dem time » term time, dem die, pwm time
a le » a les, a la, a e
a l » a la

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: "typologien der variation series dem time communication ((a le) OR (a l)) developpement en afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologien der variation series dem time communication ((a le) OR (a l)) developpement en afrique.*.