Perhaps you should try some spelling variations:
variation series » education series, action series, edition series
du developpement » de developpement, le developpement, et developpement
developpement il » developpement de, developpement et, developpement du
der variation » de variation, does variation, die variation
typology der » typologie der, typologien der, typologie des
das business » sas business, gas business, des business
series das » series data, series bias, series a
il afrique » l afrique, en afrique

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

• Adding a wildcard symbol may retrieve word variants: typology der variation series das business opportunities _ du developpement il afrique.*.