Perhaps you should try some spelling variations:
force communication » face communication, voice communication, voice communications
variation der » variation des, variation bei, variation _
typologie de » typologie des, typologie der, typologien der
de variation » der variation, die variation, does variation
des afrique » en afrique, de l'afrique
de force » de forges, de formes, use force
a beta » _ beta, 1 beta, 2 beta
a bet » a best, a bent, a bit

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 de variation der de force communication ((a bet) OR (a beta)) developpement des afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologie de variation der de force communication ((a bet) OR (a beta)) developpement des afrique.*.