Perhaps you should try some spelling variations:
1.1 communication » 4.1 communication, 1.3 communication, 1.4 communication
developpement du » developpement de, developpement des, developpement et
technology work » technology week, technology network, technology working
work existing » pre existing, co existing, do existing
du afrique » en afrique, l afrique, de l'afrique
from 1.1 » from 1.1b, from 11, from 1.2
expect » expert, expected

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

• Adding a wildcard symbol may retrieve word variants: technology work existing expect from 1.1 communication costs _ developpement du afrique.*.