Perhaps you should try some spelling variations:
vote communication » voice communication, ante communication, remote communication
au developpement » du developpement, de developpement, le developpement
developpement de » developpement des, developpement durable
communication 2 » communication _, communication a, communication 3
de afrique » de l'afrique, en afrique, l afrique
vs first » his first, 2 first, 3 first
2 au » 2 auf, 2 abu, 2 aus

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: "typology _ variation ((vs first) OR (its first)) vote communication 2 au developpement de afrique.~".
• Adding a wildcard symbol may retrieve word variants: typology _ variation ((vs first) OR (its first)) vote communication 2 au developpement de afrique.*.