Perhaps you should try some spelling variations:
oral communication » personal communication
der developpement » de developpement, des developpements, leur developpement
einer prediction » linear prediction, inter prediction, lines prediction
developpement et » developpement des, developpement de, development east
typologie einer » typologie eines, typologie einiger, theologie einer
et afrique » en afrique, l afrique
series dr » series d, series de, series _
dr oral » dr osrar

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

• Adding a wildcard symbol may retrieve word variants: typologie einer prediction series dr oral communication _ der developpement et afrique.*.