Perhaps you should try some spelling variations:
personal communication » interpersonal communication
le developpement » de developpement, sme development
developpement en » developpement et, developpement des, developpement de
formation among » formalization among, formation across
typologie der » typologie des, ideologie der
der formation » der information, der reformation, der formativen
2 personal » 1 personal, 4 personal
among 2 » among _, among a, among 15

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

• Adding a wildcard symbol may retrieve word variants: typologie der formation among 2 personal communication _ le developpement en afrique.*.