Perhaps you should try some spelling variations:
communication model » communication media
life developpement » le developpement, de developpement, le dveloppement
5.1 communication » 4.1 communication, 1.1 communication, 3.1 communication
developpement l » developpement il, developpement la, developpement de
inflation tax » inflation rate, inflation _, inflation target
tax practices » sex practices, six practices, farm practices
practices 5.1 » practice 5.1, practices 5.2, practices 3.1
model life » modern life, model linear, model listed
l afrique » en afrique

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

• Adding a wildcard symbol may retrieve word variants: technology _ inflation tax practices 5.1 communication model life developpement l afrique.*.