Perhaps you should try some spelling variations:
personal communication » interpersonal communication
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
variation using » variations during, variation und, variation among
typologien der » typologie der, typologie des, apologien der
der variation » de variation, does variation, die variation
using loans » housing loans, using lean, using load
a de » a die, a der, a des

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

• Adding a wildcard symbol may retrieve word variants: typologien der variation using loans personal communication a de developpement en afrique.*.