Perhaps you should try some spelling variations:
vote communication » voice communication, ante communication, remote communication
variation series » education series, action series, edition series
au developpement » du developpement, de developpement, le developpement
developpement de » developpement des, developpement durable
series first » services first, series firm, series from
first vote » first notes, first vice, first volume
de afrique » de l'afrique, en afrique, l afrique
a au » a auf, a bau, a aus

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

• Adding a wildcard symbol may retrieve word variants: typology _ variation series first vote communication a au developpement de afrique.*.