Perhaps you should try some spelling variations:
dauer communications » paper communications, data communications, face communications
communications pt » communication pt, communications _, communications a
rates developing » crises developing
developing desd » developing deep, developing design, developing based
typologie auf » typologie am, typologie fur, typologie zaku
auf variation » a variation, lsf variation, about variation
variation der » variation des, variation bei, variation _
themen dauer » themen der, themen des, themen auf
desd afrique » en afrique, de l'afrique
pt rates » past rates, out rates, vat rates

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

• Adding a wildcard symbol may retrieve word variants: typologie auf variation der themen dauer communications pt rates developing desd afrique.*.