Perhaps you should try some spelling variations:
2.2 communication » 2.3 communication, 3.2 communication, 2.7 communication
developpement en » developpement et, developpement des, developpement de
der information » insider information, sector information, labor information
information 3.3 » information 3.2, information 3.4, information 3.5
technology der » technology does, technology 4ir, technology dlt
3.3 practice » 3.3 practices, 3.1 practice, 4.3 practice
practice 2.2 » practice 2.5, practice 2.1, practice 4.1

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

• Adding a wildcard symbol may retrieve word variants: technology der information 3.3 practice 2.2 communication costs _ developpement en afrique.*.