Perhaps you should try some spelling variations:
walter communication » water communication, master communication, matter communication
communication model » communication media
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
technologie und » technologies 2.1
hands walter » hans walter, hands after, bands water
model de » model due, model d, model du

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

• Adding a wildcard symbol may retrieve word variants: technologie und innovation _ hands walter communication model de developpement en afrique.*.