Perhaps you should try some spelling variations:
oral communication » personal communication
information sheet » information speed, information super, information society
des developpement » des developpements, de developpement, le developpement
developpement en » developpement et, developpement des, developpement de
technologies 4 » technologies _
4 information » 2 information, 1 information
sheet via » sheet 6a
en africa » em africa, eu africa, en america
via oral » via odal, via local, via modal

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information sheet via oral communication _ des developpement en africa.*.