Perhaps you should try some spelling variations:
personal communication » interpersonal communication
net developpement » et developpement, de developpement, le developpement
developpement de » developpement des, developpement durable
variation using » variations during, variation und, variation among
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
goes personal » roles personal, des personal, names personal
using goes » using games, using goals, using gross

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

• Adding a wildcard symbol may retrieve word variants: typologie der variation using goes personal communication _ net developpement de l'afrique.*.