Perhaps you should try some spelling variations:
personal communication » interpersonal communication
developpements durable » developpement durable, developpement rural, developpements de
des developpements » deux developpements, de developpement, et developpements
variation being » variation bei, variation using, variation among
maybe personal » manage personal, have personal, more personal
theologie die » theologie der, theologie des, theologie im
die variation » de variation, does variation, der variation
a des » a der, a das

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

• Adding a wildcard symbol may retrieve word variants: theologie die variation being maybe personal communication a des developpements durable afrique.*.