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
hatch walter » nach walter, nach alter, hans walter
model de » model due, model d, model du
a hatch » a patch, a watch

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

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