Perhaps you should try some spelling variations:
walter communication » water communication, master communication, matter communication
communication model » communication media
due developpement » de developpement, du developpement, le developpement
technologies und » technologie und, technologien und, technologies under
developpement en » developpement et, developpement des, developpement de
hand walter » hans walter, und walter, sind walter
model due » model du, model deep, model d
a hand » a hands, _ hand, a hard

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

• Adding a wildcard symbol may retrieve word variants: technologies und innovation a hand walter communication model due developpement en afrique.*.